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authorPeter Maydell <peter.maydell@linaro.org>2016-05-17 15:18:06 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-06-09 15:55:02 +0100
commit33271823323483b4ede1ae99de83d33b25875402 (patch)
treef719645e17d3acbc473bca72a9ea87754bbc15e3
parenta5852dc5de140fafa364722c35b8fe74d9f929a2 (diff)
target-i386: Add comment about do_interrupt_user() next_eip argument
Add a comment to do_interrupt_user() along the same lines as the existing one for do_interrupt_all() noting that the next_eip argument is not used unless is_int is true or intno is EXCP_SYSCALL. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org> Acked-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Message-id: 1463494687-25947-6-git-send-email-peter.maydell@linaro.org
-rw-r--r--target-i386/seg_helper.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c
index 97aee092dc..6cbdf17426 100644
--- a/target-i386/seg_helper.c
+++ b/target-i386/seg_helper.c
@@ -1129,7 +1129,11 @@ static void do_interrupt_real(CPUX86State *env, int intno, int is_int,
}
#if defined(CONFIG_USER_ONLY)
-/* fake user mode interrupt */
+/* fake user mode interrupt. is_int is TRUE if coming from the int
+ * instruction. next_eip is the env->eip value AFTER the interrupt
+ * instruction. It is only relevant if is_int is TRUE or if intno
+ * is EXCP_SYSCALL.
+ */
static void do_interrupt_user(CPUX86State *env, int intno, int is_int,
int error_code, target_ulong next_eip)
{