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From: "Laszlo Ersek" <lersek@redhat.com>
To: Anthony PERARD <anthony.perard@citrix.com>, devel@edk2.groups.io
Cc: xen-devel@lists.xenproject.org,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Julien Grall <julien.grall@arm.com>
Subject: Re: [PATCH v3 15/35] OvmfPkg/AcpiPlatformDxe: Use Xen PVH RSDP if it exist
Date: Mon, 8 Jul 2019 16:42:29 +0200	[thread overview]
Message-ID: <648a9322-2dda-28b9-cb98-4d763ec9e248@redhat.com> (raw)
In-Reply-To: <20190704144233.27968-16-anthony.perard@citrix.com>

On 07/04/19 16:42, Anthony PERARD wrote:
> If the firmware have been started via the Xen PVH entry point, a RSDP
> pointer would have been provided. Use it.
> 
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
> ---
> 
> Notes:
>     v3:
>     - patch splited from the previous one
>     - Fix DEBUG format string, use %p for pointers.
>       and use gEfiCallerBaseName to print module name
> 
>  OvmfPkg/AcpiPlatformDxe/Xen.c | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/OvmfPkg/AcpiPlatformDxe/Xen.c b/OvmfPkg/AcpiPlatformDxe/Xen.c
> index 82794b933e..376a6bd3cb 100644
> --- a/OvmfPkg/AcpiPlatformDxe/Xen.c
> +++ b/OvmfPkg/AcpiPlatformDxe/Xen.c
> @@ -36,10 +36,27 @@ GetXenAcpiRsdp (
>    EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER   *RsdpStructurePtr;
>    UINT8                                          *XenAcpiPtr;
>    UINT8                                          Sum;
> +  EFI_XEN_INFO                                   *XenInfo;
>  
>    //
>    // Detect the RSDP structure
>    //
> +
> +  //
> +  // First look for PVH one
> +  //
> +  XenInfo = XenGetInfoHOB ();
> +  ASSERT (XenInfo != NULL);
> +  if (XenInfo->RsdpPvh != NULL) {
> +    DEBUG ((DEBUG_INFO, "%a: Use ACPI RSDP table at 0x%p\n",
> +            gEfiCallerBaseName, XenInfo->RsdpPvh));

(1) Please fix the indentation here; "gEfiCallerBaseName" should start
under the "B" in "DEBUG".

With that updated:

Reviewed-by: Laszlo Ersek <lersek@redhat.com>

Thanks
Laszlo

> +    *RsdpPtr = XenInfo->RsdpPvh;
> +    return EFI_SUCCESS;
> +  }
> +
> +  //
> +  // Otherwise, look for the HVM one
> +  //
>    for (XenAcpiPtr = (UINT8*)(UINTN) XEN_ACPI_PHYSICAL_ADDRESS;
>         XenAcpiPtr < (UINT8*)(UINTN) XEN_BIOS_PHYSICAL_END;
>         XenAcpiPtr += 0x10) {
> 


  reply	other threads:[~2019-07-08 14:42 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-04 14:41 [PATCH v3 00/35] Specific platform to run OVMF in Xen PVH and HVM guests Anthony PERARD
2019-07-04 14:41 ` [PATCH v3 01/35] OvmfPkg/ResetSystemLib: Add missing dependency on PciLib Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 02/35] OvmfPkg: Create platform OvmfXen Anthony PERARD
2019-07-05 13:29   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 03/35] OvmfPkg: Introduce XenResetVector Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 04/35] OvmfPkg: Introduce XenPlatformPei Anthony PERARD
2019-07-05 13:53   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 05/35] OvmfPkg/OvmfXen: Creating an ELF header Anthony PERARD
2019-07-05 14:09   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 06/35] OvmfPkg/XenResetVector: Add new entry point for Xen PVH Anthony PERARD
2019-07-05 13:57   ` Andrew Cooper
2019-07-19 10:20     ` Anthony PERARD
2019-07-19 14:33       ` Laszlo Ersek
2019-07-19 14:41         ` Andrew Cooper
2019-07-19 15:51           ` Anthony PERARD
2019-07-05 14:14   ` Laszlo Ersek
2019-07-15 11:46   ` Roger Pau Monné
2019-07-15 11:50     ` Andrew Cooper
2019-07-15 14:25       ` Roger Pau Monné
2019-07-19 14:00     ` Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 07/35] OvmfPkg/XenResetVector: Saving start of day pointer for PVH guests Anthony PERARD
2019-07-05 14:24   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 08/35] OvmfPkg/XenResetVector: Allow jumpstart from either hvmloader or PVH Anthony PERARD
2019-07-05 14:54   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 09/35] OvmfPkg/OvmfXen: use a TimerLib instance that depends only on the CPU Anthony PERARD
2019-07-05 15:01   ` Laszlo Ersek
2019-07-15 14:22   ` Roger Pau Monné
2019-07-22 13:49     ` Anthony PERARD
2019-07-22 19:28       ` Laszlo Ersek
2019-07-23  9:02         ` Roger Pau Monné
2019-07-04 14:42 ` [PATCH v3 10/35] OvmfPkg/XenPlatformPei: Detect OVMF_INFO from hvmloader Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 11/35] OvmfPkg/XenPlatformPei: Use mXenHvmloaderInfo to get E820 Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 12/35] OvmfPkg/XenPlatformPei: Grab RSDP from PVH guest start of day struct Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 13/35] OvmfPkg/Library/XenPlatformLib: New library Anthony PERARD
2019-07-08 14:34   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 14/35] OvmfPkg/AcpiPlatformDxe: Use XenPlatformLib Anthony PERARD
2019-07-08 14:38   ` Laszlo Ersek
2019-07-10  9:42     ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 15/35] OvmfPkg/AcpiPlatformDxe: Use Xen PVH RSDP if it exist Anthony PERARD
2019-07-08 14:42   ` Laszlo Ersek [this message]
2019-07-04 14:42 ` [PATCH v3 16/35] OvmfPkg/XenHypercallLib: Enable it in PEIM Anthony PERARD
2019-07-08 14:51   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 17/35] OvmfPkg/XenPlatformPei: Reinit XenHypercallLib Anthony PERARD
2019-07-08 15:07   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 18/35] OvmfPkg/XenPlatformPei: Introduce XenHvmloaderDetected Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 19/35] OvmfPkg/XenPlatformPei: Reserve hvmloader's memory only when it has run Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 20/35] OvmfPkg/XenPlatformPei: Setup HyperPages earlier Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 21/35] OvmfPkg/XenPlatformPei: Introduce XenPvhDetected Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 22/35] OvmfPkg: Import XENMEM_memory_map hypercall to Xen/memory.h Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 23/35] OvmfPkg/XenPlatformPei: no hvmloader: get the E820 table via hypercall Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 24/35] OvmfPkg/XenPlatformPei: Rework memory detection Anthony PERARD
2019-07-15 14:15   ` roger.pau
2019-07-22 14:53     ` Anthony PERARD
2019-07-22 19:45       ` Laszlo Ersek
2019-07-22 23:08         ` Laszlo Ersek
2019-07-23  9:42       ` Roger Pau Monné
2019-07-23 16:06         ` Anthony PERARD
2019-07-24 16:17         ` Anthony PERARD
2019-07-25  9:08           ` Roger Pau Monné
2019-07-25 10:05             ` Anthony PERARD
2019-07-25 11:03               ` Roger Pau Monné
2019-07-04 14:42 ` [PATCH v3 25/35] OvmfPkg/XenPlatformPei: Reserve VGA memory region, to boot Linux Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 26/35] OvmfPkg/XenPlatformPei: Ignore missing PCI Host Bridge on Xen PVH Anthony PERARD
2019-07-08 15:31   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 27/35] OvmfPkg/XenPlatformLib: Cache result for XenDetected Anthony PERARD
2019-07-10  9:31   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 28/35] OvmfPkg/PlatformBootManagerLib: Use XenDetected from XenPlatformLib Anthony PERARD
2019-07-10  9:45   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 29/35] OvmfPkg/PlatformBootManagerLib: Handle the absence of PCI bus on Xen PVH Anthony PERARD
2019-07-10  9:50   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 30/35] OvmfPkg/OvmfXen: Override PcdFSBClock to Xen vLAPIC timer frequency Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 31/35] OvmfPkg/OvmfXen: Introduce XenTimerDxe Anthony PERARD
2019-07-10 10:12   ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 32/35] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn Anthony PERARD
2019-07-10 10:48   ` Laszlo Ersek
2019-07-22 17:06     ` Anthony PERARD
2019-07-23  7:31       ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 33/35] OvmfPkg: Introduce XenIoPvhDxe to initialize Grant Tables Anthony PERARD
2019-07-10 14:05   ` Laszlo Ersek
2019-07-26 16:06     ` Anthony PERARD
2019-07-26 17:19       ` Laszlo Ersek
2019-07-04 14:42 ` [PATCH v3 34/35] OvmfPkg: Move XenRealTimeClockLib from ArmVirtPkg Anthony PERARD
2019-07-04 14:42 ` [PATCH v3 35/35] OvmfPkg/OvmfXen: use RealTimeClockRuntimeDxe from EmbeddedPkg Anthony PERARD
2019-07-05 12:21 ` [edk2-devel] [PATCH v3 00/35] Specific platform to run OVMF in Xen PVH and HVM guests Laszlo Ersek
2019-07-19 16:42   ` Anthony PERARD
2019-07-22 19:09     ` Laszlo Ersek
2019-07-23 11:37       ` Anthony PERARD
2019-07-30  9:03         ` Laszlo Ersek
2019-07-05 15:06 ` Laszlo Ersek
2019-07-10 14:12 ` Laszlo Ersek

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