diff options
| author | Bernhard Beschow <shentey@gmail.com> | 2022-06-26 11:46:56 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2022-06-29 00:24:59 +0200 |
| commit | c379bd7551f34e42c4c935783c0c08bab41d70c1 (patch) | |
| tree | 3023c1a4254f7939591c316fb25312fe1e149dc1 /hw/isa/piix3.c | |
| parent | 21d87050af66f50c8d394a160e89560ceaa6bd5d (diff) | |
hw/i386/xen/xen-hvm: Inline xen_piix_pci_write_config_client() and remove it
xen_piix_pci_write_config_client() is implemented in the xen sub tree and
uses PIIX constants internally, thus creating a direct dependency on
PIIX. Now that xen_set_pci_link_route() is stubbable, the logic of
xen_piix_pci_write_config_client() can be moved to PIIX which resolves
the dependency.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20220626094656.15673-3-shentey@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'hw/isa/piix3.c')
| -rw-r--r-- | hw/isa/piix3.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/hw/isa/piix3.c b/hw/isa/piix3.c index 6388558f92..48f9ab1096 100644 --- a/hw/isa/piix3.c +++ b/hw/isa/piix3.c @@ -138,7 +138,20 @@ static void piix3_write_config(PCIDevice *dev, static void piix3_write_config_xen(PCIDevice *dev, uint32_t address, uint32_t val, int len) { - xen_piix_pci_write_config_client(address, val, len); + int i; + + /* Scan for updates to PCI link routes (0x60-0x63). */ + for (i = 0; i < len; i++) { + uint8_t v = (val >> (8 * i)) & 0xff; + if (v & 0x80) { + v = 0; + } + v &= 0xf; + if (((address + i) >= PIIX_PIRQCA) && ((address + i) <= PIIX_PIRQCD)) { + xen_set_pci_link_route(address + i - PIIX_PIRQCA, v); + } + } + piix3_write_config(dev, address, val, len); } |