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passed the kvm test case of "TestApplicationSyscall" on Arm64 platform

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For test case "TestApplicationSyscall",
Syscall in guest user level will be trapped in el0_svc.
And in el0_svc, we use mmio_exit to leave the KVM guest for now.

Signed-off-by: Bin Lu <bin.lu@arm.com>
This commit is contained in:
Bin Lu
2019-11-26 15:57:15 +08:00
parent b72e1b3c08
commit 3e00624806
1 changed files with 10 additions and 0 deletions
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pkg/sentry/platform/ring0/entry_arm64.s
+10
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@@ -441,6 +441,16 @@ TEXT ·El0_sync(SB),NOSPLIT,$0
B el0_invalid
el0_svc:
WORD $0xd538d092 //MRS TPIDR_EL1, R18
MOVD $0, CPU_ERROR_CODE(RSV_REG) // Clear error code.
MOVD $1, R3
MOVD R3, CPU_ERROR_TYPE(RSV_REG) // Set error type to user.
MOVD $Syscall, R3
MOVD R3, CPU_VECTOR_CODE(RSV_REG)
B ·Halt(SB)
el0_da: