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KVM: arm64: Introduce print_nvhe_hyp_panic helper

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Add a helper to display a panic banner soon to also be used for kCFI
failures, to ensure that we remain consistent.

Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240610063244.2828978-8-ptosi@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Pierre-Clément Tosi 2024-06-10 07:32:36 +01:00 committed by Oliver Upton
parent 7a928b32f1
commit 8f3873a395
1 changed files with 8 additions and 4 deletions
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12
arch/arm64/kvm/handle_exit.c
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@ -411,6 +411,12 @@ void handle_exit_early(struct kvm_vcpu *vcpu, int exception_index)
kvm_handle_guest_serror(vcpu, kvm_vcpu_get_esr(vcpu));
}
static void print_nvhe_hyp_panic(const char *name, u64 panic_addr)
{
kvm_err("nVHE hyp %s at: [<%016llx>] %pB!\n", name, panic_addr,
(void *)(panic_addr + kaslr_offset()));
}
void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr,
u64 elr_virt, u64 elr_phys,
u64 par, uintptr_t vcpu,
@ -439,11 +445,9 @@ void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr,
if (file)
kvm_err("nVHE hyp BUG at: %s:%u!\n", file, line);
else
kvm_err("nVHE hyp BUG at: [<%016llx>] %pB!\n", panic_addr,
(void *)(panic_addr + kaslr_offset()));
print_nvhe_hyp_panic("BUG", panic_addr);
} else {
kvm_err("nVHE hyp panic at: [<%016llx>] %pB!\n", panic_addr,
(void *)(panic_addr + kaslr_offset()));
print_nvhe_hyp_panic("panic", panic_addr);
}
/* Dump the nVHE hypervisor backtrace */