File sm501-Use-BIT-x-macro-to-shorten-constan.patch of Package qemu.20375

Overview Repositories Revisions Requests Users Attributes Meta

File sm501-Use-BIT-x-macro-to-shorten-constan.patch of Package qemu.20375

From: BALATON Zoltan <balaton@eik.bme.hu>
Date: Thu, 21 May 2020 21:39:44 +0200
Subject: sm501: Use BIT(x) macro to shorten constant
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Git-commit: 2824809b7f8f03ddc6e2b7e33e78c06022424298
References: bsc#1172385, CVE-2020-12829

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 124bf5de8d7cf503b32b377d0445029a76bfbd49.1590089984.git.balaton@eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/display/sm501.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index bb2672c9a30a83ea8a0b2c436438..d0e92fff336de06e99577a5ded96 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -701,7 +701,7 @@ static void sm501_2d_operation(SM501State *s)
 {
     /* obtain operation parameters */
     int cmd = (s->twoD_control >> 16) & 0x1F;
-    int rtl = s->twoD_control & 0x8000000;
+    int rtl = s->twoD_control & BIT(27);
     int src_x = (s->twoD_source >> 16) & 0x01FFF;
     int src_y = s->twoD_source & 0xFFFF;
     int dst_x = (s->twoD_destination >> 16) & 0x01FFF;
@@ -751,8 +751,7 @@ static void sm501_2d_operation(SM501State *s)
         }
     }
 
-    if ((s->twoD_source_base & 0x08000000) ||
-        (s->twoD_destination_base & 0x08000000)) {
+    if (s->twoD_source_base & BIT(27) || s->twoD_destination_base & BIT(27)) {
         qemu_log_mask(LOG_UNIMP, "sm501: only local memory is supported.\n");
         return;
     }

Places

File sm501-Use-BIT-x-macro-to-shorten-constan.patch of Package qemu.20375

Places