From: "Anthony PERARD" <anthony.perard@citrix.com>
To: <devel@edk2.groups.io>
Cc: Laszlo Ersek <lersek@redhat.com>,
Jordan Justen <jordan.l.justen@intel.com>,
Julien Grall <julien.grall@arm.com>,
<xen-devel@lists.xenproject.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Anthony PERARD <anthony.perard@citrix.com>
Subject: [PATCH v5 28/35] OvmfPkg/PlatformBootManagerLib: Handle the absence of PCI bus on Xen PVH
Date: Tue, 13 Aug 2019 12:31:12 +0100 [thread overview]
Message-ID: <20190813113119.14804-29-anthony.perard@citrix.com> (raw)
In-Reply-To: <20190813113119.14804-1-anthony.perard@citrix.com>
When running in a Xen PVH guest, there's nothing to do in
PciAcpiInitialization() because there isn't any PCI bus. When the Host
Bridge DID isn't recognised, simply continue. (The value of
PcdOvmfHostBridgePciDevId would be 0 because it isn't set.)
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
---
Notes:
v3:
- Instead of checking for a false value,
XEN_PVH_PCI_HOST_BRIDGE_DEVICE_ID, simply check if we are running xen
when the HostBridge device ID isn't recognised.
OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index d5d5d20fd8..1eba304f09 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -1208,6 +1208,12 @@ PciAcpiInitialization (
PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x6b), 0x0b); // H
break;
default:
+ if (XenDetected ()) {
+ //
+ // There is no PCI bus in this case.
+ //
+ return;
+ }
DEBUG ((EFI_D_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
__FUNCTION__, mHostBridgeDevId));
ASSERT (FALSE);
--
Anthony PERARD
next prev parent reply other threads:[~2019-08-13 11:58 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 11:30 [PATCH v5 00/35] Specific platform to run OVMF in Xen PVH and HVM guests Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 01/35] OvmfPkg/ResetSystemLib: Add missing dependency on PciLib Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 02/35] OvmfPkg: Create platform OvmfXen Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 03/35] OvmfPkg: Introduce XenResetVector Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 04/35] OvmfPkg: Introduce XenPlatformPei Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 05/35] OvmfPkg/OvmfXen: Creating an ELF header Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 06/35] OvmfPkg/XenResetVector: Add new entry point for Xen PVH Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 07/35] OvmfPkg/XenResetVector: Saving start of day pointer for PVH guests Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 08/35] OvmfPkg/XenResetVector: Allow jumpstart from either hvmloader or PVH Anthony PERARD
2019-08-21 16:31 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:30 ` [PATCH v5 09/35] OvmfPkg/OvmfXen: use a TimerLib instance that depends only on the CPU Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 10/35] OvmfPkg/XenPlatformPei: Detect OVMF_INFO from hvmloader Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 11/35] OvmfPkg/XenPlatformPei: Use mXenHvmloaderInfo to get E820 Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 12/35] OvmfPkg/XenPlatformPei: Grab RSDP from PVH guest start of day struct Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 13/35] OvmfPkg/Library/XenPlatformLib: New library Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 14/35] OvmfPkg/AcpiPlatformDxe: Use XenPlatformLib Anthony PERARD
2019-08-13 11:30 ` [PATCH v5 15/35] OvmfPkg/AcpiPlatformDxe: Use Xen PVH RSDP if it exist Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 16/35] OvmfPkg/XenHypercallLib: Enable it in PEIM Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 17/35] OvmfPkg/XenPlatformPei: Reinit XenHypercallLib Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 18/35] OvmfPkg/XenPlatformPei: Introduce XenHvmloaderDetected Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 19/35] OvmfPkg/XenPlatformPei: Setup HyperPages earlier Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 20/35] OvmfPkg/XenPlatformPei: Introduce XenPvhDetected Anthony PERARD
2019-08-15 8:54 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 21/35] OvmfPkg: Import XENMEM_memory_map hypercall to Xen/memory.h Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 22/35] OvmfPkg/XenPlatformPei: no hvmloader: get the E820 table via hypercall Anthony PERARD
2019-08-15 8:59 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 23/35] OvmfPkg/XenPlatformPei: Rework memory detection Anthony PERARD
2019-08-15 9:26 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 24/35] OvmfPkg/XenPlatformPei: Reserve VGA memory region, to boot Linux Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 25/35] OvmfPkg/XenPlatformPei: Ignore missing PCI Host Bridge on Xen PVH Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 26/35] OvmfPkg/XenPlatformLib: Cache result for XenDetected Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 27/35] OvmfPkg/PlatformBootManagerLib: Use XenDetected from XenPlatformLib Anthony PERARD
2019-08-13 11:31 ` Anthony PERARD [this message]
2019-08-13 11:31 ` [PATCH v5 29/35] OvmfPkg/OvmfXen: Override PcdFSBClock to Xen vLAPIC timer frequency Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 30/35] OvmfPkg/OvmfXen: Introduce XenTimerDxe Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 31/35] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn Anthony PERARD
2019-08-15 9:35 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 32/35] OvmfPkg: Introduce PcdXenGrantFrames Anthony PERARD
2019-08-15 9:40 ` [edk2-devel] " Laszlo Ersek
2019-08-15 9:45 ` Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 33/35] OvmfPkg: Introduce XenIoPvhDxe to initialize Grant Tables Anthony PERARD
2019-08-15 9:42 ` [edk2-devel] " Laszlo Ersek
2019-08-13 11:31 ` [PATCH v5 34/35] OvmfPkg: Move XenRealTimeClockLib from ArmVirtPkg Anthony PERARD
2019-08-13 11:31 ` [PATCH v5 35/35] OvmfPkg/OvmfXen: use RealTimeClockRuntimeDxe from EmbeddedPkg Anthony PERARD
2019-08-15 11:03 ` [edk2-devel] [PATCH v5 00/35] Specific platform to run OVMF in Xen PVH and HVM guests Laszlo Ersek
2019-08-21 16:16 ` Laszlo Ersek
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