diff options
Diffstat (limited to 'pkg/sentry/platform/ring0')
| -rw-r--r-- | pkg/sentry/platform/ring0/aarch64.go | 67 | ||||
| -rw-r--r-- | pkg/sentry/platform/ring0/entry_arm64.s | 31 | ||||
| -rw-r--r-- | pkg/sentry/platform/ring0/offsets_arm64.go | 45 |
3 files changed, 86 insertions, 57 deletions
diff --git a/pkg/sentry/platform/ring0/aarch64.go b/pkg/sentry/platform/ring0/aarch64.go index 87a573cc4..327d48465 100644 --- a/pkg/sentry/platform/ring0/aarch64.go +++ b/pkg/sentry/platform/ring0/aarch64.go @@ -58,46 +58,55 @@ type Vector uintptr // Exception vectors. const ( - El1SyncInvalid = iota - El1IrqInvalid - El1FiqInvalid - El1ErrorInvalid + El1InvSync = iota + El1InvIrq + El1InvFiq + El1InvError + El1Sync El1Irq El1Fiq - El1Error + El1Err + El0Sync El0Irq El0Fiq - El0Error - El0Sync_invalid - El0Irq_invalid - El0Fiq_invalid - El0Error_invalid - El1Sync_da - El1Sync_ia - El1Sync_sp_pc - El1Sync_undef - El1Sync_dbg - El1Sync_inv - El0Sync_svc - El0Sync_da - El0Sync_ia - El0Sync_fpsimd_acc - El0Sync_sve_acc - El0Sync_sys - El0Sync_sp_pc - El0Sync_undef - El0Sync_dbg - El0Sync_inv + El0Err + + El0InvSync + El0InvIrq + El0InvFiq + El0InvErr + + El1SyncDa + El1SyncIa + El1SyncSpPc + El1SyncUndef + El1SyncDbg + El1SyncInv + + El0SyncSVC + El0SyncDa + El0SyncIa + El0SyncFpsimdAcc + El0SyncSveAcc + El0SyncSys + El0SyncSpPc + El0SyncUndef + El0SyncDbg + El0SyncInv + + El0ErrNMI + El0ErrBounce + _NR_INTERRUPTS ) // System call vectors. const ( - Syscall Vector = El0Sync_svc - PageFault Vector = El0Sync_da - VirtualizationException Vector = El0Error + Syscall Vector = El0SyncSVC + PageFault Vector = El0SyncDa + VirtualizationException Vector = El0ErrBounce ) // VirtualAddressBits returns the number bits available for virtual addresses. diff --git a/pkg/sentry/platform/ring0/entry_arm64.s b/pkg/sentry/platform/ring0/entry_arm64.s index f9278b653..f489ad352 100644 --- a/pkg/sentry/platform/ring0/entry_arm64.s +++ b/pkg/sentry/platform/ring0/entry_arm64.s @@ -288,6 +288,10 @@ #define ESR_ELx_WFx_ISS_WFE (UL(1) << 0) #define ESR_ELx_xVC_IMM_MASK ((1UL << 16) - 1) +/* ISS field definitions for system error */ +#define ESR_ELx_SERR_MASK (0x1) +#define ESR_ELx_SERR_NMI (0x1) + // LOAD_KERNEL_ADDRESS loads a kernel address. #define LOAD_KERNEL_ADDRESS(from, to) \ MOVD from, to; \ @@ -691,7 +695,7 @@ el0_sp_pc: B ·Shutdown(SB) el0_undef: - EXCEPTION_WITH_ERROR(1, El0Sync_undef) + EXCEPTION_WITH_ERROR(1, El0SyncUndef) el0_dbg: B ·Shutdown(SB) @@ -707,6 +711,29 @@ TEXT ·El0_fiq(SB),NOSPLIT,$0 TEXT ·El0_error(SB),NOSPLIT,$0 KERNEL_ENTRY_FROM_EL0 + WORD $0xd5385219 // MRS ESR_EL1, R25 + AND $ESR_ELx_SERR_MASK, R25, R24 + CMP $ESR_ELx_SERR_NMI, R24 + BEQ el0_nmi + B el0_bounce +el0_nmi: + WORD $0xd538d092 //MRS TPIDR_EL1, R18 + WORD $0xd538601a //MRS FAR_EL1, R26 + + MOVD R26, CPU_FAULT_ADDR(RSV_REG) + + MOVD $1, R3 + MOVD R3, CPU_ERROR_TYPE(RSV_REG) // Set error type to user. + + MOVD $El0ErrNMI, R3 + MOVD R3, CPU_VECTOR_CODE(RSV_REG) + + MRS ESR_EL1, R3 + MOVD R3, CPU_ERROR_CODE(RSV_REG) + + B ·kernelExitToEl1(SB) + +el0_bounce: WORD $0xd538d092 //MRS TPIDR_EL1, R18 WORD $0xd538601a //MRS FAR_EL1, R26 @@ -718,7 +745,7 @@ TEXT ·El0_error(SB),NOSPLIT,$0 MOVD $VirtualizationException, R3 MOVD R3, CPU_VECTOR_CODE(RSV_REG) - B ·HaltAndResume(SB) + B ·kernelExitToEl1(SB) TEXT ·El0_sync_invalid(SB),NOSPLIT,$0 B ·Shutdown(SB) diff --git a/pkg/sentry/platform/ring0/offsets_arm64.go b/pkg/sentry/platform/ring0/offsets_arm64.go index 45eba960d..53bc3353c 100644 --- a/pkg/sentry/platform/ring0/offsets_arm64.go +++ b/pkg/sentry/platform/ring0/offsets_arm64.go @@ -47,43 +47,36 @@ func Emit(w io.Writer) { fmt.Fprintf(w, "#define _KERNEL_FLAGS 0x%02x\n", KernelFlagsSet) fmt.Fprintf(w, "\n// Vectors.\n") - fmt.Fprintf(w, "#define El1SyncInvalid 0x%02x\n", El1SyncInvalid) - fmt.Fprintf(w, "#define El1IrqInvalid 0x%02x\n", El1IrqInvalid) - fmt.Fprintf(w, "#define El1FiqInvalid 0x%02x\n", El1FiqInvalid) - fmt.Fprintf(w, "#define El1ErrorInvalid 0x%02x\n", El1ErrorInvalid) fmt.Fprintf(w, "#define El1Sync 0x%02x\n", El1Sync) fmt.Fprintf(w, "#define El1Irq 0x%02x\n", El1Irq) fmt.Fprintf(w, "#define El1Fiq 0x%02x\n", El1Fiq) - fmt.Fprintf(w, "#define El1Error 0x%02x\n", El1Error) + fmt.Fprintf(w, "#define El1Err 0x%02x\n", El1Err) fmt.Fprintf(w, "#define El0Sync 0x%02x\n", El0Sync) fmt.Fprintf(w, "#define El0Irq 0x%02x\n", El0Irq) fmt.Fprintf(w, "#define El0Fiq 0x%02x\n", El0Fiq) - fmt.Fprintf(w, "#define El0Error 0x%02x\n", El0Error) + fmt.Fprintf(w, "#define El0Err 0x%02x\n", El0Err) - fmt.Fprintf(w, "#define El0Sync_invalid 0x%02x\n", El0Sync_invalid) - fmt.Fprintf(w, "#define El0Irq_invalid 0x%02x\n", El0Irq_invalid) - fmt.Fprintf(w, "#define El0Fiq_invalid 0x%02x\n", El0Fiq_invalid) - fmt.Fprintf(w, "#define El0Error_invalid 0x%02x\n", El0Error_invalid) + fmt.Fprintf(w, "#define El1SyncDa 0x%02x\n", El1SyncDa) + fmt.Fprintf(w, "#define El1SyncIa 0x%02x\n", El1SyncIa) + fmt.Fprintf(w, "#define El1SyncSpPc 0x%02x\n", El1SyncSpPc) + fmt.Fprintf(w, "#define El1SyncUndef 0x%02x\n", El1SyncUndef) + fmt.Fprintf(w, "#define El1SyncDbg 0x%02x\n", El1SyncDbg) + fmt.Fprintf(w, "#define El1SyncInv 0x%02x\n", El1SyncInv) - fmt.Fprintf(w, "#define El1Sync_da 0x%02x\n", El1Sync_da) - fmt.Fprintf(w, "#define El1Sync_ia 0x%02x\n", El1Sync_ia) - fmt.Fprintf(w, "#define El1Sync_sp_pc 0x%02x\n", El1Sync_sp_pc) - fmt.Fprintf(w, "#define El1Sync_undef 0x%02x\n", El1Sync_undef) - fmt.Fprintf(w, "#define El1Sync_dbg 0x%02x\n", El1Sync_dbg) - fmt.Fprintf(w, "#define El1Sync_inv 0x%02x\n", El1Sync_inv) + fmt.Fprintf(w, "#define El0SyncSVC 0x%02x\n", El0SyncSVC) + fmt.Fprintf(w, "#define El0SyncDa 0x%02x\n", El0SyncDa) + fmt.Fprintf(w, "#define El0SyncIa 0x%02x\n", El0SyncIa) + fmt.Fprintf(w, "#define El0SyncFpsimdAcc 0x%02x\n", El0SyncFpsimdAcc) + fmt.Fprintf(w, "#define El0SyncSveAcc 0x%02x\n", El0SyncSveAcc) + fmt.Fprintf(w, "#define El0SyncSys 0x%02x\n", El0SyncSys) + fmt.Fprintf(w, "#define El0SyncSpPc 0x%02x\n", El0SyncSpPc) + fmt.Fprintf(w, "#define El0SyncUndef 0x%02x\n", El0SyncUndef) + fmt.Fprintf(w, "#define El0SyncDbg 0x%02x\n", El0SyncDbg) + fmt.Fprintf(w, "#define El0SyncInv 0x%02x\n", El0SyncInv) - fmt.Fprintf(w, "#define El0Sync_svc 0x%02x\n", El0Sync_svc) - fmt.Fprintf(w, "#define El0Sync_da 0x%02x\n", El0Sync_da) - fmt.Fprintf(w, "#define El0Sync_ia 0x%02x\n", El0Sync_ia) - fmt.Fprintf(w, "#define El0Sync_fpsimd_acc 0x%02x\n", El0Sync_fpsimd_acc) - fmt.Fprintf(w, "#define El0Sync_sve_acc 0x%02x\n", El0Sync_sve_acc) - fmt.Fprintf(w, "#define El0Sync_sys 0x%02x\n", El0Sync_sys) - fmt.Fprintf(w, "#define El0Sync_sp_pc 0x%02x\n", El0Sync_sp_pc) - fmt.Fprintf(w, "#define El0Sync_undef 0x%02x\n", El0Sync_undef) - fmt.Fprintf(w, "#define El0Sync_dbg 0x%02x\n", El0Sync_dbg) - fmt.Fprintf(w, "#define El0Sync_inv 0x%02x\n", El0Sync_inv) + fmt.Fprintf(w, "#define El0ErrNMI 0x%02x\n", El0ErrNMI) fmt.Fprintf(w, "#define PageFault 0x%02x\n", PageFault) fmt.Fprintf(w, "#define Syscall 0x%02x\n", Syscall) |