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Fix graphics output in HVM #73

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merged 2 commits into from
Feb 23, 2025
Merged

Fix graphics output in HVM #73

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8653186
Drop local definition of XENFEAT_dm_msix_all_writes
marmarek Feb 20, 2025
fcf61c4
Update gui-agent submodule
marmarek Feb 20, 2025
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2 changes: 1 addition & 1 deletion qemu/gui-agent
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Submodule gui-agent updated 1 files
+1 −0 gui-agent-qemu/qubes-gui.c
20 changes: 0 additions & 20 deletions qemu/patches/0006-Do-not-access-dev-mem-in-MSI-X-PCI-passthrough-on-Xe.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -30,26 +30,6 @@ Signed-off-by: Marek Marczykowski-Górecki <[email protected]>
hw/xen/xen_pt_msi.c | 89 ++++++++++++++++++++++++++-------------------
2 files changed, 61 insertions(+), 37 deletions(-)

diff --git a/hw/xen/xen_pt.h b/hw/xen/xen_pt.h
index b20744f7c7..813fc56927 100644
--- a/hw/xen/xen_pt.h
+++ b/hw/xen/xen_pt.h
@@ -29,6 +29,15 @@ void xen_pt_log(const PCIDevice *d, const char *f, ...) G_GNUC_PRINTF(2, 3);
# define XEN_PT_LOG_CONFIG(d, addr, val, len)
#endif

+/* addition to xen/interface/features.h until updated upstream */
+/*
+ * If set, Xen will passthrough all MSI-X vector ctrl writes to device model,
+ * not only those unmasking an entry. This allows device model to properly keep
+ * track of the MSI-X table without having to read it from the device behind
+ * Xen's backs. This information is relevant only for device models.
+ */
+#define XENFEAT_dm_msix_all_writes 18
+

/* Helper */
#define XEN_PFN(x) ((x) >> XC_PAGE_SHIFT)
diff --git a/hw/xen/xen_pt_msi.c b/hw/xen/xen_pt_msi.c
index 09cca4eecb..898db4a4d6 100644
--- a/hw/xen/xen_pt_msi.c
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