From: Paolo Bonzini <pbonzini@redhat.com>

Clear the flags before adding in the ones computed from lflags.

Cc: Wei Liu <liuwe@linux.microsoft.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 94a159f3dc737d00749cc930adaec112abe07b3c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/target/i386/hvf/x86_flags.c b/target/i386/hvf/x86_flags.c
index 03d6de5efc..fedc70a1b8 100644
--- a/target/i386/hvf/x86_flags.c
+++ b/target/i386/hvf/x86_flags.c
@@ -293,6 +293,7 @@ void set_SF(CPUX86State *env, bool val)
 
 void lflags_to_rflags(CPUX86State *env)
 {
+    env->eflags &= ~(CC_C|CC_P|CC_A|CC_Z|CC_S|CC_O);
     env->eflags |= get_CF(env) ? CC_C : 0;
     env->eflags |= get_PF(env) ? CC_P : 0;
     env->eflags |= get_AF(env) ? CC_A : 0;
-- 
2.39.5