Don't mislead callers into thinking that a non-implemented int15 service
succeeded.
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Sasha Levin <levinsasha928@xxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxx>
---
tools/kvm/bios/int15.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/bios/int15.c b/tools/kvm/bios/int15.c
index e1a1ce4..faf5343 100644
--- a/tools/kvm/bios/int15.c
+++ b/tools/kvm/bios/int15.c
@@ -2,11 +2,17 @@
#include "kvm/e820.h"
+#include <asm/processor-flags.h>
+
bioscall void int15_handler(struct biosregs *regs)
{
switch (regs->eax) {
case 0xe820:
e820_query_map(regs);
break;
+ default:
+ /* Set CF to indicate failure. */
+ regs->eflags |= X86_EFLAGS_CF;
+ break;
}
}
--
1.7.0.4
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