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x86/sev-es: Replace open-coded hlt-loop with sev_es_terminate()

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Replace the halt loop in handle_vc_boot_ghcb() with an
sev_es_terminate(). The HLT gives the system no indication the guest is
unhappy. The termination request will signal there was an error during
VC handling during boot.

  [ bp: Update it to pass the reason set too. ]

Signed-off-by: Peter Gonda <pgonda@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20220317211913.1397427-1-pgonda@google.com
This commit is contained in:
Peter Gonda 2022-03-17 14:19:13 -07:00 committed by Borislav Petkov
parent 92a99584d9
commit e720ea52e8
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/sev.c
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@ -1982,8 +1982,7 @@ bool __init handle_vc_boot_ghcb(struct pt_regs *regs)
fail:
show_regs(regs);
while (true)
halt();
sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_GEN_REQ);
}
/*