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[PATCH 45/97] ioapic: kvm: Skip route updates for masked pins
From: |
Michael Roth |
Subject: |
[PATCH 45/97] ioapic: kvm: Skip route updates for masked pins |
Date: |
Tue, 1 Oct 2019 18:45:24 -0500 |
From: Jan Kiszka <address@hidden>
Masked entries will not generate interrupt messages, thus do no need to
be routed by KVM. This is a cosmetic cleanup, just avoiding warnings of
the kind
qemu-system-x86_64: vtd_irte_get: detected non-present IRTE (index=0,
high=0xff00, low=0x100)
if the masked entry happens to reference a non-present IRTE.
Cc: address@hidden
Signed-off-by: Jan Kiszka <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Peter Xu <address@hidden>
(cherry picked from commit be1927c97e564346cbd409cb17fe611df74b84e5)
Signed-off-by: Michael Roth <address@hidden>
---
hw/intc/ioapic.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c
index 9d75f84d3b..194ccb6a3e 100644
--- a/hw/intc/ioapic.c
+++ b/hw/intc/ioapic.c
@@ -188,9 +188,11 @@ static void ioapic_update_kvm_routes(IOAPICCommonState *s)
MSIMessage msg;
struct ioapic_entry_info info;
ioapic_entry_parse(s->ioredtbl[i], &info);
- msg.address = info.addr;
- msg.data = info.data;
- kvm_irqchip_update_msi_route(kvm_state, i, msg, NULL);
+ if (!info.masked) {
+ msg.address = info.addr;
+ msg.data = info.data;
+ kvm_irqchip_update_msi_route(kvm_state, i, msg, NULL);
+ }
}
kvm_irqchip_commit_routes(kvm_state);
}
--
2.17.1
- [PATCH 43/97] hw/ssi/xilinx_spips: Avoid AXI writes to the LQSPI linear memory, (continued)
- [PATCH 43/97] hw/ssi/xilinx_spips: Avoid AXI writes to the LQSPI linear memory, Michael Roth, 2019/10/01
- [PATCH 32/97] vl: Fix -drive / -blockdev persistent reservation management, Michael Roth, 2019/10/01
- [PATCH 42/97] hw/ssi/xilinx_spips: Convert lqspi_read() to read_with_attrs, Michael Roth, 2019/10/01
- [PATCH 47/97] virtio-balloon: Fix wrong sign extension of PFNs, Michael Roth, 2019/10/01
- [PATCH 57/97] tpm_emulator: Translate TPM error codes to strings, Michael Roth, 2019/10/01
- [PATCH 48/97] virtio-balloon: Fix QEMU crashes on pagesize > BALLOON_PAGE_SIZE, Michael Roth, 2019/10/01
- [PATCH 41/97] docs/bitmaps: use QMP lexer instead of json, Michael Roth, 2019/10/01
- [PATCH 53/97] virtio-balloon: don't track subpages for the PBP, Michael Roth, 2019/10/01
- [PATCH 50/97] virtio-balloon: Better names for offset variables in inflate/deflate code, Michael Roth, 2019/10/01
- [PATCH 55/97] i386/acpi: fix gint overflow in crs_range_compare, Michael Roth, 2019/10/01
- [PATCH 45/97] ioapic: kvm: Skip route updates for masked pins,
Michael Roth <=
- [PATCH 03/97] qcow2: Fix full preallocation with external data file, Michael Roth, 2019/10/01
- [PATCH 36/97] virtio-pci: fix missing device properties, Michael Roth, 2019/10/01
- [PATCH 05/97] qcow2: Fix qcow2_make_empty() with external data file, Michael Roth, 2019/10/01
- [PATCH 74/97] xen-bus: Fix backend state transition on device reset, Michael Roth, 2019/10/01
- [PATCH 70/97] Revert "ide/ahci: Check for -ECANCELED in aio callbacks", Michael Roth, 2019/10/01
- [PATCH 93/97] slirp: Fix heap overflow in ip_reass on big packet input, Michael Roth, 2019/10/01
- [PATCH 78/97] iotests: Add supported protocols to execute_test(), Michael Roth, 2019/10/01
- [PATCH 52/97] virtio-balloon: Use temporary PBP only, Michael Roth, 2019/10/01
- [PATCH 54/97] virtio-balloon: free pbp more aggressively, Michael Roth, 2019/10/01
- [PATCH 73/97] target/arm: Don't abort on M-profile exception return in linux-user mode, Michael Roth, 2019/10/01