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target/i386/mshv: Implement mshv_arch_put_registers()

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Write CPU register state to MSHV vCPUs. Various mapping functions to
prepare the payload for the HV call have been implemented.

Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-17-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Magnus Kulke
2025-10-08 19:17:30 +02:00
committed by Paolo Bonzini
parent 0382c2c854
commit 25a1d871e0
2 changed files with 252 additions and 0 deletions
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include/system/mshv_int.h
+15
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@@ -49,6 +49,20 @@ typedef struct MshvMsiControl {
#define mshv_vcpufd(cpu) (cpu->accel->cpufd)
/* cpu */
typedef struct MshvFPU {
uint8_t fpr[8][16];
uint16_t fcw;
uint16_t fsw;
uint8_t ftwx;
uint8_t pad1;
uint16_t last_opcode;
uint64_t last_ip;
uint64_t last_dp;
uint8_t xmm[16][16];
uint32_t mxcsr;
uint32_t pad2;
} MshvFPU;
typedef enum MshvVmExit {
MshvVmExitIgnore = 0,
MshvVmExitShutdown = 1,
@@ -58,6 +72,7 @@ typedef enum MshvVmExit {
void mshv_init_mmio_emu(void);
int mshv_create_vcpu(int vm_fd, uint8_t vp_index, int *cpu_fd);
void mshv_remove_vcpu(int vm_fd, int cpu_fd);
int mshv_configure_vcpu(const CPUState *cpu, const MshvFPU *fpu, uint64_t xcr0);
int mshv_get_standard_regs(CPUState *cpu);
int mshv_get_special_regs(CPUState *cpu);
int mshv_run_vcpu(int vm_fd, CPUState *cpu, hv_message *msg, MshvVmExit *exit);