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Merge pull request #3201 from lubinszARM:pr_sys64_2

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PiperOrigin-RevId: 323456118
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gVisor bot
2020-07-27 15:46:33 -07:00
parent 1b2006083c ced5863c49
commit b0eafc7454
1 changed files with 9 additions and 0 deletions
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pkg/sentry/platform/ring0/entry_arm64.s
+9
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@@ -48,6 +48,12 @@
#define SCTLR_EL1_DEFAULT (SCTLR_M | SCTLR_C | SCTLR_I | SCTLR_UCT)
// cntkctl_el1: counter-timer kernel control register el1.
#define CNTKCTL_EL0PCTEN 1 << 0
#define CNTKCTL_EL0VCTEN 1 << 1
#define CNTKCTL_EL1_DEFAULT (CNTKCTL_EL0PCTEN | CNTKCTL_EL0VCTEN)
// Saves a register set.
//
// This is a macro because it may need to executed in contents where a stack is
@@ -509,6 +515,9 @@ TEXT ·Start(SB),NOSPLIT,$0
MOVD $SCTLR_EL1_DEFAULT, R1
MSR R1, SCTLR_EL1
MOVD $CNTKCTL_EL1_DEFAULT, R1
MSR R1, CNTKCTL_EL1
MOVD R8, RSV_REG
ORR $0xffff000000000000, RSV_REG, RSV_REG
WORD $0xd518d092 //MSR R18, TPIDR_EL1