From: "Laszlo Ersek" <lersek@redhat.com>
To: Anthony PERARD <anthony.perard@citrix.com>
Cc: devel@edk2.groups.io, 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 32/35] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn
Date: Tue, 23 Jul 2019 09:31:52 +0200 [thread overview]
Message-ID: <ad29e58d-3bf1-0a05-5a76-25294776988f@redhat.com> (raw)
In-Reply-To: <20190722170643.GH1208@perard.uk.xensource.com>
On 07/22/19 19:06, Anthony PERARD wrote:
> On Wed, Jul 10, 2019 at 12:48:57PM +0200, Laszlo Ersek wrote:
>> On 07/04/19 16:42, Anthony PERARD wrote:
>>> On a Xen PVH guest, none of the existing serial or console interface
>>> works, so we add a new one, based on XenConsoleSerialPortLib, and
>>> implemented via SerialDxe.
>>>
>>> That is a simple console implementation that can works on both PVH
>>> guest and HVM guests, even if it rarely going to be use on HVM.
>>>
>>> Have PlatformBootManagerLib look for the new console, when running as a
>>> Xen guest.
>>>
>>> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
>>> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
>>> ---
>
>>> diff --git a/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c b/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
>>> index 36aab784d7..a9b1fe274a 100644
>>> --- a/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
>>> +++ b/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
>>> @@ -9,18 +9,19 @@
>>>
>>> #include "BdsPlatform.h"
>>> #include <Guid/QemuRamfb.h>
>>> +#include <Guid/SerialPortLibVendor.h>
>>>
>>> //
>>> // Debug Agent UART Device Path structure
>>> //
>>> -#pragma pack(1)
>>> +#pragma pack (1)
>>> typedef struct {
>>> VENDOR_DEVICE_PATH VendorHardware;
>>> UART_DEVICE_PATH Uart;
>>> VENDOR_DEVICE_PATH TerminalType;
>>> EFI_DEVICE_PATH_PROTOCOL End;
>>> } VENDOR_UART_DEVICE_PATH;
>>> -#pragma pack()
>>> +#pragma pack ()
>>>
>>> //
>>> // USB Keyboard Device Path structure
>>> @@ -43,6 +44,18 @@ typedef struct {
>>> } VENDOR_RAMFB_DEVICE_PATH;
>>> #pragma pack ()
>>>
>>> +//
>>> +// Xen Console Device Path structure
>>> +//
>>> +#pragma pack(1)
>>> +typedef struct {
>>> + VENDOR_DEVICE_PATH VendorHardware;
>>> + UART_DEVICE_PATH Uart;
>>> + VENDOR_DEVICE_PATH TerminalType;
>>> + EFI_DEVICE_PATH_PROTOCOL End;
>>> +} XEN_CONSOLE_DEVICE_PATH;
>>> +#pragma pack()
>>> +
>>
>> This version of the patch addresses all of my v2 review comments (either
>> by code changes or by explanations in the Notes section) -- thanks for that.
>>
>> However, when you arrived at my reuqest (6) in
>> <http://mid.mail-archive.com/7d6adf5d-baca-7e9c-68ef-2f8479bbd902@redhat.com>,
>> and searched the source file for "pack(" -- in order to insert a space
>> character before the opening paren --, the match was *not* around the
>> new XEN_CONSOLE_DEVICE_PATH structure. Instead, it was around the
>> preexistent VENDOR_UART_DEVICE_PATH structure. And so you fixed the
>> style for the old code, and not the new code.
>>
>> But: that's actually useful. Because now that I'm looking at
>> VENDOR_UART_DEVICE_PATH, it seems that we don't need the new type
>> XEN_CONSOLE_DEVICE_PATH at all. Is that right? So:
>>
>> (1) Please drop XEN_CONSOLE_DEVICE_PATH.
>>
>> (2) Please replace the comment
>>
>> Debug Agent UART Device Path structure
>>
>> with
>>
>> Vendor UART Device Path structure
>>
>> on VENDOR_UART_DEVICE_PATH.
>>
>> (3) Please preserve the "misplaced" whitespace fix, for "pack(", around
>> VENDOR_UART_DEVICE_PATH.
>>
>> (4) Please use VENDOR_UART_DEVICE_PATH as the type of gXenConsoleDevicePath.
>>
>> With those:
>>
>> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
>
> I'm going to add the following to the commit message:
>
> Since we use VENDOR_UART_DEVICE_PATH, fix its description and
> coding style.
>
>
Thanks!
Laszlo
next prev parent reply other threads:[~2019-07-23 7:31 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
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 [this message]
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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