hw/xen: set pci Atomic Ops requests for passthrough device

[PATCH] hw/xen: set pci Atomic Ops requests for passthrough device

Ji, Ruili posted 1 patch 1 year, 7 months ago

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hw/xen/xen_pt_config_init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

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[PATCH] hw/xen: set pci Atomic Ops requests for passthrough device

Posted by Ji, Ruili 1 year, 7 months ago

From: Ruili Ji <ruili.ji@amd.com>

Make guest os access pci device control 2 reg for passthrough device
as struct XenPTRegInfo described in the file hw/xen/xen_pt.h.
/* reg read only field mask (ON:RO/ROS, OFF:other) */
uint32_t ro_mask;
/* reg emulate field mask (ON:emu, OFF:passthrough) */
uint32_t emu_mask;

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1196
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Aaron.Liu@amd.com
Signed-off-by: ruili.ji@amd.com
---
 hw/xen/xen_pt_config_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/xen/xen_pt_config_init.c b/hw/xen/xen_pt_config_init.c
index c5c4e943a8..adc565a00a 100644
--- a/hw/xen/xen_pt_config_init.c
+++ b/hw/xen/xen_pt_config_init.c
@@ -985,8 +985,8 @@ static XenPTRegInfo xen_pt_emu_reg_pcie[] = {
         .offset     = 0x28,
         .size       = 2,
         .init_val   = 0x0000,
-        .ro_mask    = 0xFFE0,
-        .emu_mask   = 0xFFFF,
+        .ro_mask    = 0xFFA0,
+        .emu_mask   = 0xFFBF,
         .init       = xen_pt_devctrl2_reg_init,
         .u.w.read   = xen_pt_word_reg_read,
         .u.w.write  = xen_pt_word_reg_write,
-- 
2.34.1