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ANDROID: KVM: arm64: Always resolve nvhe BUGs file and line

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ELR virt address is always shared by the hypervisor and then compared
against a host accessible ELF section. Also, Now pKVM prefaults the
entire host stage-2, we are not at risk of triggering a memory abort in
the panic path. There is no need to hide that feature behind
NVHE_EL2_DEBUG anymore.

Bug: 357781595
Change-Id: I8251ba636dd8ab7de276027fa542bbe43eccb297
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
This commit is contained in:
Vincent Donnefort
2025-02-21 14:04:26 +00:00
parent 7bc24faa5a
commit e19e2557a0
1 changed files with 3 additions and 7 deletions
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10
arch/arm64/kvm/handle_exit.c
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@@ -553,17 +553,13 @@ void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr,
kvm_err("Invalid host exception to nVHE hyp!\n");
} else if (ESR_ELx_EC(esr) == ESR_ELx_EC_BRK64 &&
esr_brk_comment(esr) == BUG_BRK_IMM) {
struct bug_entry *bug = find_bug(elr_in_kimg);
const char *file = NULL;
unsigned int line = 0;
/* All hyp bugs, including warnings, are treated as fatal. */
if (!is_protected_kvm_enabled() ||
IS_ENABLED(CONFIG_NVHE_EL2_DEBUG)) {
struct bug_entry *bug = find_bug(elr_in_kimg);
if (bug)
bug_get_file_line(bug, &file, &line);
}
if (bug)
bug_get_file_line(bug, &file, &line);
if (file)
kvm_err("nVHE hyp BUG at: %s:%u!\n", file, line);