diff options
Diffstat (limited to 'arch/arm64/kvm/hyp')
| -rw-r--r-- | arch/arm64/kvm/hyp/entry.S | 5 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/hyp-entry.S | 6 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index bd34016354ba..fb2e218ce0c7 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -127,8 +127,8 @@ ENTRY(__guest_exit) alternative_if ARM64_HAS_RAS_EXTN // If we have the RAS extensions we can consume a pending error - // without an unmask-SError and isb. - esb + // without an unmask-SError and isb. The ESB-instruction consumed any + // pending guest error when we took the exception from the guest. mrs_s x2, SYS_DISR_EL1 str x2, [x1, #(VCPU_FAULT_DISR - VCPU_CONTEXT)] cbz x2, 1f @@ -146,7 +146,6 @@ alternative_else mov x5, x0 dsb sy // Synchronize against in-flight ld/st - nop msr daifclr, #4 // Unmask aborts alternative_endif diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index a911b8ffc0f3..ffa68d5713f1 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -226,6 +226,7 @@ ENDPROC(\label) .macro valid_vect target .align 7 661: + esb stp x0, x1, [sp, #-16]! 662: b \target @@ -237,6 +238,7 @@ check_preamble_length 661b, 662b .align 7 661: b \target + nop 662: ldp x0, x1, [sp], #16 b \target @@ -269,7 +271,8 @@ ENDPROC(__kvm_hyp_vector) #ifdef CONFIG_KVM_INDIRECT_VECTORS .macro hyp_ventry .align 7 -1: .rept 27 +1: esb + .rept 26 nop .endr /* @@ -317,6 +320,7 @@ ENTRY(__bp_harden_hyp_vecs_end) .popsection ENTRY(__smccc_workaround_1_smc_start) + esb sub sp, sp, #(8 * 4) stp x2, x3, [sp, #(8 * 0)] stp x0, x1, [sp, #(8 * 2)] |