Merge tag 'pull-target-arm-20220519' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Implement FEAT_S2FWB
 * Implement FEAT_IDST
 * Drop unsupported_encoding() macro
 * hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
 * Fix aarch64 debug register names
 * hw/adc/zynq-xadc: Use qemu_irq typedef
 * target/arm/helper.c: Delete stray obsolete comment
 * Make number of counters in PMCR follow the CPU
 * hw/arm/virt: Fix dtb nits
 * ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY
 * target/arm: Fix PAuth keys access checks for disabled SEL2
 * Enable FEAT_HCX for -cpu max
 * Use FIELD definitions for CPACR, CPTR_ELx

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# gpg: Signature made Thu 19 May 2022 10:35:53 AM PDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]

* tag 'pull-target-arm-20220519' of https://git.linaro.org/people/pmaydell/qemu-arm: (22 commits)
  target/arm: Use FIELD definitions for CPACR, CPTR_ELx
  target/arm: Enable FEAT_HCX for -cpu max
  target/arm: Fix PAuth keys access checks for disabled SEL2
  ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY
  hw/arm/virt: Drop #size-cells and #address-cells from gpio-keys dtb node
  hw/arm/virt: Fix incorrect non-secure flash dtb node name
  target/arm: Make number of counters in PMCR follow the CPU
  target/arm/helper.c: Delete stray obsolete comment
  hw/adc/zynq-xadc: Use qemu_irq typedef
  Fix aarch64 debug register names.
  hw/intc/arm_gicv3: Provide ich_num_aprs()
  hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
  hw/intc/arm_gicv3: Support configurable number of physical priority bits
  hw/intc/arm_gicv3_kvm.c: Stop using GIC_MIN_BPR constant
  hw/intc/arm_gicv3: report correct PRIbits field in ICV_CTLR_EL1
  hw/intc/arm_gicv3_cpuif: Handle CPUs that don't specify GICv3 parameters
  target/arm: Drop unsupported_encoding() macro
  target/arm: Implement FEAT_IDST
  target/arm: Enable FEAT_S2FWB for -cpu max
  target/arm: Implement FEAT_S2FWB
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2022-05-19 11:56:39 -07:00
46 changed files with 697 additions and 228 deletions
+2
View File
@@ -31,6 +31,7 @@ the following architecture extensions:
- FEAT_FlagM2 (Enhancements to flag manipulation instructions)
- FEAT_HPDS (Hierarchical permission disables)
- FEAT_I8MM (AArch64 Int8 matrix multiplication instructions)
- FEAT_IDST (ID space trap handling)
- FEAT_IESB (Implicit error synchronization event)
- FEAT_JSCVT (JavaScript conversion instructions)
- FEAT_LOR (Limited ordering regions)
@@ -52,6 +53,7 @@ the following architecture extensions:
- FEAT_RAS (Reliability, availability, and serviceability)
- FEAT_RDM (Advanced SIMD rounding double multiply accumulate instructions)
- FEAT_RNG (Random number generator)
- FEAT_S2FWB (Stage 2 forced Write-Back)
- FEAT_SB (Speculation Barrier)
- FEAT_SEL2 (Secure EL2)
- FEAT_SHA1 (SHA1 instructions)
+2 -2
View File
@@ -86,7 +86,7 @@ static void zynq_xadc_update_ints(ZynqXADCState *s)
s->regs[INT_STS] |= INT_DFIFO_GTH;
}
qemu_set_irq(s->qemu_irq, !!(s->regs[INT_STS] & ~s->regs[INT_MASK]));
qemu_set_irq(s->irq, !!(s->regs[INT_STS] & ~s->regs[INT_MASK]));
}
static void zynq_xadc_reset(DeviceState *d)
@@ -262,7 +262,7 @@ static void zynq_xadc_init(Object *obj)
memory_region_init_io(&s->iomem, obj, &xadc_ops, s, "zynq-xadc",
ZYNQ_XADC_MMIO_SIZE);
sysbus_init_mmio(sbd, &s->iomem);
sysbus_init_irq(sbd, &s->qemu_irq);
sysbus_init_irq(sbd, &s->irq);
}
static const VMStateDescription vmstate_zynq_xadc = {
+1 -1
View File
@@ -761,7 +761,7 @@ static void do_cpu_reset(void *opaque)
env->cp15.scr_el3 |= SCR_ATA;
}
if (cpu_isar_feature(aa64_sve, cpu)) {
env->cp15.cptr_el[3] |= CPTR_EZ;
env->cp15.cptr_el[3] |= R_CPTR_EL3_EZ_MASK;
}
/* AArch64 kernels never boot in secure mode */
assert(!info->secure_boot);
+1 -1
View File
@@ -464,7 +464,7 @@ static void mv88w8618_timer_init(SysBusDevice *dev, mv88w8618_timer_state *s,
sysbus_init_irq(dev, &s->irq);
s->freq = freq;
s->ptimer = ptimer_init(mv88w8618_timer_tick, s, PTIMER_POLICY_DEFAULT);
s->ptimer = ptimer_init(mv88w8618_timer_tick, s, PTIMER_POLICY_LEGACY);
}
static uint64_t mv88w8618_pit_read(void *opaque, hwaddr offset,
+1 -3
View File
@@ -925,8 +925,6 @@ static void create_gpio_keys(char *fdt, DeviceState *pl061_dev,
qemu_fdt_add_subnode(fdt, "/gpio-keys");
qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys");
qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#size-cells", 0);
qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#address-cells", 1);
qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff");
qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff",
@@ -1195,7 +1193,7 @@ static void virt_flash_fdt(VirtMachineState *vms,
qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");
g_free(nodename);
nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
nodename = g_strdup_printf("/flash@%" PRIx64, flashbase + flashsize);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
+3 -1
View File
@@ -41,7 +41,9 @@
#include "hw/virtio/virtio-pci.h"
#include "qom/object_interfaces.h"
GlobalProperty hw_compat_7_0[] = {};
GlobalProperty hw_compat_7_0[] = {
{ "arm-gicv3-common", "force-8-bit-prio", "on" },
};
const size_t hw_compat_7_0_len = G_N_ELEMENTS(hw_compat_7_0);
GlobalProperty hw_compat_6_2[] = {
+1 -1
View File
@@ -552,7 +552,7 @@ static void xilinx_axidma_realize(DeviceState *dev, Error **errp)
st->dma = s;
st->nr = i;
st->ptimer = ptimer_init(timer_hit, st, PTIMER_POLICY_DEFAULT);
st->ptimer = ptimer_init(timer_hit, st, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(st->ptimer);
ptimer_set_freq(st->ptimer, s->freqhz);
ptimer_transaction_commit(st->ptimer);
+1 -1
View File
@@ -666,7 +666,7 @@ static void xlnx_csu_dma_realize(DeviceState *dev, Error **errp)
sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq);
s->src_timer = ptimer_init(xlnx_csu_dma_src_timeout_hit,
s, PTIMER_POLICY_DEFAULT);
s, PTIMER_POLICY_LEGACY);
s->attr = MEMTXATTRS_UNSPECIFIED;
+5
View File
@@ -563,6 +563,11 @@ static Property arm_gicv3_common_properties[] = {
DEFINE_PROP_UINT32("revision", GICv3State, revision, 3),
DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0),
DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0),
/*
* Compatibility property: force 8 bits of physical priority, even
* if the CPU being emulated should have fewer.
*/
DEFINE_PROP_BOOL("force-8-bit-prio", GICv3State, force_8bit_prio, 0),
DEFINE_PROP_ARRAY("redist-region-count", GICv3State, nb_redist_regions,
redist_region_count, qdev_prop_uint32, uint32_t),
DEFINE_PROP_LINK("sysmem", GICv3State, dma, TYPE_MEMORY_REGION,
+159 -66
View File
@@ -49,6 +49,14 @@ static inline int icv_min_vbpr(GICv3CPUState *cs)
return 7 - cs->vprebits;
}
static inline int ich_num_aprs(GICv3CPUState *cs)
{
/* Return the number of virtual APR registers (1, 2, or 4) */
int aprmax = 1 << (cs->vprebits - 5);
assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
return aprmax;
}
/* Simple accessor functions for LR fields */
static uint32_t ich_lr_vintid(uint64_t lr)
{
@@ -145,9 +153,7 @@ static int ich_highest_active_virt_prio(GICv3CPUState *cs)
* in the ICH Active Priority Registers.
*/
int i;
int aprmax = 1 << (cs->vprebits - 5);
assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
int aprmax = ich_num_aprs(cs);
for (i = 0; i < aprmax; i++) {
uint32_t apr = cs->ich_apr[GICV3_G0][i] |
@@ -657,7 +663,7 @@ static uint64_t icv_ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
* should match the ones reported in ich_vtr_read().
*/
value = ICC_CTLR_EL1_A3V | (1 << ICC_CTLR_EL1_IDBITS_SHIFT) |
(7 << ICC_CTLR_EL1_PRIBITS_SHIFT);
((cs->vpribits - 1) << ICC_CTLR_EL1_PRIBITS_SHIFT);
if (cs->ich_vmcr_el2 & ICH_VMCR_EL2_VEOIM) {
value |= ICC_CTLR_EL1_EOIMODE;
@@ -787,6 +793,36 @@ static uint64_t icv_iar_read(CPUARMState *env, const ARMCPRegInfo *ri)
return intid;
}
static uint32_t icc_fullprio_mask(GICv3CPUState *cs)
{
/*
* Return a mask word which clears the unimplemented priority bits
* from a priority value for a physical interrupt. (Not to be confused
* with the group priority, whose mask depends on the value of BPR
* for the interrupt group.)
*/
return ~0U << (8 - cs->pribits);
}
static inline int icc_min_bpr(GICv3CPUState *cs)
{
/* The minimum BPR for the physical interface. */
return 7 - cs->prebits;
}
static inline int icc_min_bpr_ns(GICv3CPUState *cs)
{
return icc_min_bpr(cs) + 1;
}
static inline int icc_num_aprs(GICv3CPUState *cs)
{
/* Return the number of APR registers (1, 2, or 4) */
int aprmax = 1 << MAX(cs->prebits - 5, 0);
assert(aprmax <= ARRAY_SIZE(cs->icc_apr[0]));
return aprmax;
}
static int icc_highest_active_prio(GICv3CPUState *cs)
{
/* Calculate the current running priority based on the set bits
@@ -794,14 +830,14 @@ static int icc_highest_active_prio(GICv3CPUState *cs)
*/
int i;
for (i = 0; i < ARRAY_SIZE(cs->icc_apr[0]); i++) {
for (i = 0; i < icc_num_aprs(cs); i++) {
uint32_t apr = cs->icc_apr[GICV3_G0][i] |
cs->icc_apr[GICV3_G1][i] | cs->icc_apr[GICV3_G1NS][i];
if (!apr) {
continue;
}
return (i * 32 + ctz32(apr)) << (GIC_MIN_BPR + 1);
return (i * 32 + ctz32(apr)) << (icc_min_bpr(cs) + 1);
}
/* No current active interrupts: return idle priority */
return 0xff;
@@ -980,7 +1016,7 @@ static void icc_pmr_write(CPUARMState *env, const ARMCPRegInfo *ri,
trace_gicv3_icc_pmr_write(gicv3_redist_affid(cs), value);
value &= 0xff;
value &= icc_fullprio_mask(cs);
if (arm_feature(env, ARM_FEATURE_EL3) && !arm_is_secure(env) &&
(env->cp15.scr_el3 & SCR_FIQ)) {
@@ -1004,7 +1040,7 @@ static void icc_activate_irq(GICv3CPUState *cs, int irq)
*/
uint32_t mask = icc_gprio_mask(cs, cs->hppi.grp);
int prio = cs->hppi.prio & mask;
int aprbit = prio >> 1;
int aprbit = prio >> (8 - cs->prebits);
int regno = aprbit / 32;
int regbit = aprbit % 32;
@@ -1162,7 +1198,7 @@ static void icc_drop_prio(GICv3CPUState *cs, int grp)
*/
int i;
for (i = 0; i < ARRAY_SIZE(cs->icc_apr[grp]); i++) {
for (i = 0; i < icc_num_aprs(cs); i++) {
uint64_t *papr = &cs->icc_apr[grp][i];
if (!*papr) {
@@ -1303,9 +1339,7 @@ static int icv_drop_prio(GICv3CPUState *cs)
* 32 bits are actually relevant.
*/
int i;
int aprmax = 1 << (cs->vprebits - 5);
assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
int aprmax = ich_num_aprs(cs);
for (i = 0; i < aprmax; i++) {
uint64_t *papr0 = &cs->ich_apr[GICV3_G0][i];
@@ -1590,7 +1624,7 @@ static void icc_bpr_write(CPUARMState *env, const ARMCPRegInfo *ri,
return;
}
minval = (grp == GICV3_G1NS) ? GIC_MIN_BPR_NS : GIC_MIN_BPR;
minval = (grp == GICV3_G1NS) ? icc_min_bpr_ns(cs) : icc_min_bpr(cs);
if (value < minval) {
value = minval;
}
@@ -2171,19 +2205,19 @@ static void icc_reset(CPUARMState *env, const ARMCPRegInfo *ri)
cs->icc_ctlr_el1[GICV3_S] = ICC_CTLR_EL1_A3V |
(1 << ICC_CTLR_EL1_IDBITS_SHIFT) |
(7 << ICC_CTLR_EL1_PRIBITS_SHIFT);
((cs->pribits - 1) << ICC_CTLR_EL1_PRIBITS_SHIFT);
cs->icc_ctlr_el1[GICV3_NS] = ICC_CTLR_EL1_A3V |
(1 << ICC_CTLR_EL1_IDBITS_SHIFT) |
(7 << ICC_CTLR_EL1_PRIBITS_SHIFT);
((cs->pribits - 1) << ICC_CTLR_EL1_PRIBITS_SHIFT);
cs->icc_pmr_el1 = 0;
cs->icc_bpr[GICV3_G0] = GIC_MIN_BPR;
cs->icc_bpr[GICV3_G1] = GIC_MIN_BPR;
cs->icc_bpr[GICV3_G1NS] = GIC_MIN_BPR_NS;
cs->icc_bpr[GICV3_G0] = icc_min_bpr(cs);
cs->icc_bpr[GICV3_G1] = icc_min_bpr(cs);
cs->icc_bpr[GICV3_G1NS] = icc_min_bpr_ns(cs);
memset(cs->icc_apr, 0, sizeof(cs->icc_apr));
memset(cs->icc_igrpen, 0, sizeof(cs->icc_igrpen));
cs->icc_ctlr_el3 = ICC_CTLR_EL3_NDS | ICC_CTLR_EL3_A3V |
(1 << ICC_CTLR_EL3_IDBITS_SHIFT) |
(7 << ICC_CTLR_EL3_PRIBITS_SHIFT);
((cs->pribits - 1) << ICC_CTLR_EL3_PRIBITS_SHIFT);
memset(cs->ich_apr, 0, sizeof(cs->ich_apr));
cs->ich_hcr_el2 = 0;
@@ -2238,27 +2272,6 @@ static const ARMCPRegInfo gicv3_cpuif_reginfo[] = {
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP0R1_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 5,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP0R2_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 6,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP0R3_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 7,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
/* All the ICC_AP1R*_EL1 registers are banked */
{ .name = "ICC_AP1R0_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 0,
@@ -2267,27 +2280,6 @@ static const ARMCPRegInfo gicv3_cpuif_reginfo[] = {
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R1_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 1,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R2_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 2,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R3_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 3,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_DIR_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 11, .opc2 = 1,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
@@ -2430,6 +2422,54 @@ static const ARMCPRegInfo gicv3_cpuif_reginfo[] = {
},
};
static const ARMCPRegInfo gicv3_cpuif_icc_apxr1_reginfo[] = {
{ .name = "ICC_AP0R1_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 5,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R1_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 1,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
};
static const ARMCPRegInfo gicv3_cpuif_icc_apxr23_reginfo[] = {
{ .name = "ICC_AP0R2_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 6,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP0R3_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 8, .opc2 = 7,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_fiq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R2_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 2,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
{ .name = "ICC_AP1R3_EL1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 3,
.type = ARM_CP_IO | ARM_CP_NO_RAW,
.access = PL1_RW, .accessfn = gicv3_irq_access,
.readfn = icc_ap_read,
.writefn = icc_ap_write,
},
};
static uint64_t ich_ap_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
GICv3CPUState *cs = icc_cs_from_env(env);
@@ -2755,6 +2795,16 @@ void gicv3_init_cpuif(GICv3State *s)
ARMCPU *cpu = ARM_CPU(qemu_get_cpu(i));
GICv3CPUState *cs = &s->cpu[i];
/*
* If the CPU doesn't define a GICv3 configuration, probably because
* in real hardware it doesn't have one, then we use default values
* matching the one used by most Arm CPUs. This applies to:
* cpu->gic_num_lrs
* cpu->gic_vpribits
* cpu->gic_vprebits
* cpu->gic_pribits
*/
/* Note that we can't just use the GICv3CPUState as an opaque pointer
* in define_arm_cp_regs_with_opaque(), because when we're called back
* it might be with code translated by CPU 0 but run by CPU 1, in
@@ -2763,13 +2813,56 @@ void gicv3_init_cpuif(GICv3State *s)
* get back to the GICv3CPUState from the CPUARMState.
*/
define_arm_cp_regs(cpu, gicv3_cpuif_reginfo);
if (arm_feature(&cpu->env, ARM_FEATURE_EL2)
&& cpu->gic_num_lrs) {
/*
* The CPU implementation specifies the number of supported
* bits of physical priority. For backwards compatibility
* of migration, we have a compat property that forces use
* of 8 priority bits regardless of what the CPU really has.
*/
if (s->force_8bit_prio) {
cs->pribits = 8;
} else {
cs->pribits = cpu->gic_pribits ?: 5;
}
/*
* The GICv3 has separate ID register fields for virtual priority
* and preemption bit values, but only a single ID register field
* for the physical priority bits. The preemption bit count is
* always the same as the priority bit count, except that 8 bits
* of priority means 7 preemption bits. We precalculate the
* preemption bits because it simplifies the code and makes the
* parallels between the virtual and physical bits of the GIC
* a bit clearer.
*/
cs->prebits = cs->pribits;
if (cs->prebits == 8) {
cs->prebits--;
}
/*
* Check that CPU code defining pribits didn't violate
* architectural constraints our implementation relies on.
*/
g_assert(cs->pribits >= 4 && cs->pribits <= 8);
/*
* gicv3_cpuif_reginfo[] defines ICC_AP*R0_EL1; add definitions
* for ICC_AP*R{1,2,3}_EL1 if the prebits value requires them.
*/
if (cs->prebits >= 6) {
define_arm_cp_regs(cpu, gicv3_cpuif_icc_apxr1_reginfo);
}
if (cs->prebits == 7) {
define_arm_cp_regs(cpu, gicv3_cpuif_icc_apxr23_reginfo);
}
if (arm_feature(&cpu->env, ARM_FEATURE_EL2)) {
int j;
cs->num_list_regs = cpu->gic_num_lrs;
cs->vpribits = cpu->gic_vpribits;
cs->vprebits = cpu->gic_vprebits;
cs->num_list_regs = cpu->gic_num_lrs ?: 4;
cs->vpribits = cpu->gic_vpribits ?: 5;
cs->vprebits = cpu->gic_vprebits ?: 5;
/* Check against architectural constraints: getting these
* wrong would be a bug in the CPU code defining these,
+13 -3
View File
@@ -673,9 +673,19 @@ static void arm_gicv3_icc_reset(CPUARMState *env, const ARMCPRegInfo *ri)
s = c->gic;
c->icc_pmr_el1 = 0;
c->icc_bpr[GICV3_G0] = GIC_MIN_BPR;
c->icc_bpr[GICV3_G1] = GIC_MIN_BPR;
c->icc_bpr[GICV3_G1NS] = GIC_MIN_BPR;
/*
* Architecturally the reset value of the ICC_BPR registers
* is UNKNOWN. We set them all to 0 here; when the kernel
* uses these values to program the ICH_VMCR_EL2 fields that
* determine the guest-visible ICC_BPR register values, the
* hardware's "writing a value less than the minimum sets
* the field to the minimum value" behaviour will result in
* them effectively resetting to the correct minimum value
* for the host GIC.
*/
c->icc_bpr[GICV3_G0] = 0;
c->icc_bpr[GICV3_G1] = 0;
c->icc_bpr[GICV3_G1NS] = 0;
c->icc_sre_el1 = 0x7;
memset(c->icc_apr, 0, sizeof(c->icc_apr));
+1 -1
View File
@@ -152,7 +152,7 @@ static m5206_timer_state *m5206_timer_init(qemu_irq irq)
m5206_timer_state *s;
s = g_new0(m5206_timer_state, 1);
s->timer = ptimer_init(m5206_timer_trigger, s, PTIMER_POLICY_DEFAULT);
s->timer = ptimer_init(m5206_timer_trigger, s, PTIMER_POLICY_LEGACY);
s->irq = irq;
m5206_timer_reset(s);
return s;
+1 -1
View File
@@ -197,7 +197,7 @@ static void mcf5208_sys_init(MemoryRegion *address_space, qemu_irq *pic)
/* Timers. */
for (i = 0; i < 2; i++) {
s = g_new0(m5208_timer_state, 1);
s->timer = ptimer_init(m5208_timer_trigger, s, PTIMER_POLICY_DEFAULT);
s->timer = ptimer_init(m5208_timer_trigger, s, PTIMER_POLICY_LEGACY);
memory_region_init_io(&s->iomem, NULL, &m5208_timer_ops, s,
"m5208-timer", 0x00004000);
memory_region_add_subregion(address_space, 0xfc080000 + 0x4000 * i,
+1 -1
View File
@@ -1079,7 +1079,7 @@ static void xlnx_zynqmp_can_realize(DeviceState *dev, Error **errp)
/* Allocate a new timer. */
s->can_timer = ptimer_init(xlnx_zynqmp_can_ptimer_cb, s,
PTIMER_POLICY_DEFAULT);
PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(s->can_timer);
+1 -1
View File
@@ -393,7 +393,7 @@ static void etsec_realize(DeviceState *dev, Error **errp)
object_get_typename(OBJECT(dev)), dev->id, etsec);
qemu_format_nic_info_str(qemu_get_queue(etsec->nic), etsec->conf.macaddr.a);
etsec->ptimer = ptimer_init(etsec_timer_hit, etsec, PTIMER_POLICY_DEFAULT);
etsec->ptimer = ptimer_init(etsec_timer_hit, etsec, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(etsec->ptimer);
ptimer_set_freq(etsec->ptimer, 100);
ptimer_transaction_commit(etsec->ptimer);
+1 -1
View File
@@ -1363,7 +1363,7 @@ static void lan9118_realize(DeviceState *dev, Error **errp)
s->pmt_ctrl = 1;
s->txp = &s->tx_packet;
s->timer = ptimer_init(lan9118_tick, s, PTIMER_POLICY_DEFAULT);
s->timer = ptimer_init(lan9118_tick, s, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(s->timer);
ptimer_set_freq(s->timer, 10000);
ptimer_set_limit(s->timer, 0xffff, 1);
+2 -2
View File
@@ -564,14 +564,14 @@ static void exynos4210_rtc_init(Object *obj)
Exynos4210RTCState *s = EXYNOS4210_RTC(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
s->ptimer = ptimer_init(exynos4210_rtc_tick, s, PTIMER_POLICY_DEFAULT);
s->ptimer = ptimer_init(exynos4210_rtc_tick, s, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(s->ptimer);
ptimer_set_freq(s->ptimer, RTC_BASE_FREQ);
exynos4210_rtc_update_freq(s, 0);
ptimer_transaction_commit(s->ptimer);
s->ptimer_1Hz = ptimer_init(exynos4210_rtc_1Hz_tick,
s, PTIMER_POLICY_DEFAULT);
s, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(s->ptimer_1Hz);
ptimer_set_freq(s->ptimer_1Hz, RTC_BASE_FREQ);
ptimer_transaction_commit(s->ptimer_1Hz);
+1 -1
View File
@@ -275,7 +275,7 @@ static void a10_pit_init(Object *obj)
tc->container = s;
tc->index = i;
s->timer[i] = ptimer_init(a10_pit_timer_cb, tc, PTIMER_POLICY_DEFAULT);
s->timer[i] = ptimer_init(a10_pit_timer_cb, tc, PTIMER_POLICY_LEGACY);
}
}
+1 -1
View File
@@ -185,7 +185,7 @@ static void altera_timer_realize(DeviceState *dev, Error **errp)
return;
}
t->ptimer = ptimer_init(timer_hit, t, PTIMER_POLICY_DEFAULT);
t->ptimer = ptimer_init(timer_hit, t, PTIMER_POLICY_LEGACY);
ptimer_transaction_begin(t->ptimer);
ptimer_set_freq(t->ptimer, t->freq_hz);
ptimer_transaction_commit(t->ptimer);
+1 -1
View File
@@ -180,7 +180,7 @@ static arm_timer_state *arm_timer_init(uint32_t freq)
s->freq = freq;
s->control = TIMER_CTRL_IE;
s->timer = ptimer_init(arm_timer_tick, s, PTIMER_POLICY_DEFAULT);
s->timer = ptimer_init(arm_timer_tick, s, PTIMER_POLICY_LEGACY);
vmstate_register(NULL, VMSTATE_INSTANCE_ID_ANY, &vmstate_arm_timer, s);
return s;
}

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