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From: Laszlo Ersek <lersek@redhat.com>
To: edk2-devel-01 <edk2-devel@lists.01.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>
Subject: [PATCH 00/12] OvmfPkg/IoMmuDxe: cleanups and fixes
Date: Wed,  2 Aug 2017 23:24:41 +0200	[thread overview]
Message-ID: <20170802212453.19221-1-lersek@redhat.com> (raw)

This series is proposed as a replacement (or a replacement "basis") for
patches #1 through #3 of Brijesh's series

  [PATCH v1 0/4] OvmfPkg : IoMmuDxe: BusMasterCommonBuffer support when
                 SEV is active
  http://mid.mail-archive.com/1501529474-20550-1-git-send-email-brijesh.singh@amd.com

Patch #4 of the same series ("OvmfPkg : QemuFwCfgLib: Map DMA buffer
with CommonBuffer when SEV is enable") is required on top of this
series; otherwise QemuFwCfgLib will break on SEV.


In the present series, patches #1 through #7 are lightweight
improvements for OvmfPkg/IoMmuDxe, concerning line width, MAP_INFO field
names, conversion specifiers for DEBUG(), coding style, error
propagation, and library class listings.

Patch #8 ("zero out pages before releasing them") fixes the "information
leak" issue pointed out in:

  http://mid.mail-archive.com/e1137140-f5d5-7eb8-0162-952694b24f96@redhat.com

Patch #9 ('rework setup of "MapInfo->PlainTextAddress" in Map()') fixes
as-yet undiscussed issues, and lays the groundwork for patch #10, by
reworking the calculation of the plaintext buffer address.

Patch #10 ("implement in-place decryption/encryption for Map/Unmap")
fixes the issues around BusMasterCommonBuffer[64] operations that were
discussed in the following messages:

  http://mid.mail-archive.com/4071596d-32c9-e6d9-8c93-0d43d28e9b5a@redhat.com
  http://mid.mail-archive.com/e1137140-f5d5-7eb8-0162-952694b24f96@redhat.com
  http://mid.mail-archive.com/84c3c5db-623e-181b-c472-7fd7ae1c1670@amd.com
  http://mid.mail-archive.com/89e1553a-1630-87a5-cffd-99174a380d41@redhat.com

Patch #11 ("abort harder on memory encryption mask failures") settles
the error handling for MemEncryptSevClearPageEncMask() and
MemEncryptSevSetPageEncMask(), discussed in:

  http://mid.mail-archive.com/89e1553a-1630-87a5-cffd-99174a380d41@redhat.com

Patch #12 ("Unmap(): recycle MAP_INFO after BusMasterCommonBuffer[64]")
implements the "free list" proposed in:

  http://mid.mail-archive.com/e1137140-f5d5-7eb8-0162-952694b24f96@redhat.com

The series has been formatted with "--function-context", for easier
review.

Repo:   https://github.com/lersek/edk2.git
Branch: amdsev_iommu_cleanups_fixes

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>

Thanks
Laszlo

Laszlo Ersek (12):
  OvmfPkg/IoMmuDxe: rewrap source code to 79 characters
  OvmfPkg/IoMmuDxe: rename DeviceAddress to PlainTextAddress in MAP_INFO
  OvmfPkg/IoMmuDxe: rename HostAddress to CryptedAddress in MAP_INFO
  OvmfPkg/IoMmuDxe: convert UINTN arguments to UINT64 for the %Lx fmt
    spec
  OvmfPkg/IoMmuDxe: don't initialize local variables
  OvmfPkg/IoMmuDxe: propagate errors from AmdSevInstallIoMmuProtocol()
  OvmfPkg/IoMmuDxe: clean up used library classes
  OvmfPkg/IoMmuDxe: zero out pages before releasing them
  OvmfPkg/IoMmuDxe: rework setup of "MapInfo->PlainTextAddress" in Map()
  OvmfPkg/IoMmuDxe: implement in-place decryption/encryption for
    Map/Unmap
  OvmfPkg/IoMmuDxe: abort harder on memory encryption mask failures
  OvmfPkg/IoMmuDxe: Unmap(): recycle MAP_INFO after
    BusMasterCommonBuffer[64]

 OvmfPkg/IoMmuDxe/IoMmuDxe.inf  |  19 +-
 OvmfPkg/IoMmuDxe/AmdSevIoMmu.h |  14 +-
 OvmfPkg/IoMmuDxe/AmdSevIoMmu.c | 594 ++++++++++++++------
 OvmfPkg/IoMmuDxe/IoMmuDxe.c    |  25 +-
 4 files changed, 447 insertions(+), 205 deletions(-)

-- 
2.13.1.3.g8be5a757fa67



             reply	other threads:[~2017-08-02 21:22 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-02 21:24 Laszlo Ersek [this message]
2017-08-02 21:24 ` [PATCH 01/12] OvmfPkg/IoMmuDxe: rewrap source code to 79 characters Laszlo Ersek
2017-08-02 21:24 ` [PATCH 02/12] OvmfPkg/IoMmuDxe: rename DeviceAddress to PlainTextAddress in MAP_INFO Laszlo Ersek
2017-08-02 21:24 ` [PATCH 03/12] OvmfPkg/IoMmuDxe: rename HostAddress to CryptedAddress " Laszlo Ersek
2017-08-02 21:24 ` [PATCH 04/12] OvmfPkg/IoMmuDxe: convert UINTN arguments to UINT64 for the %Lx fmt spec Laszlo Ersek
2017-08-02 21:24 ` [PATCH 05/12] OvmfPkg/IoMmuDxe: don't initialize local variables Laszlo Ersek
2017-08-02 21:24 ` [PATCH 06/12] OvmfPkg/IoMmuDxe: propagate errors from AmdSevInstallIoMmuProtocol() Laszlo Ersek
2017-08-02 21:24 ` [PATCH 07/12] OvmfPkg/IoMmuDxe: clean up used library classes Laszlo Ersek
2017-08-02 21:24 ` [PATCH 08/12] OvmfPkg/IoMmuDxe: zero out pages before releasing them Laszlo Ersek
2017-08-02 21:24 ` [PATCH 09/12] OvmfPkg/IoMmuDxe: rework setup of "MapInfo->PlainTextAddress" in Map() Laszlo Ersek
2017-08-02 21:24 ` [PATCH 10/12] OvmfPkg/IoMmuDxe: implement in-place decryption/encryption for Map/Unmap Laszlo Ersek
2017-08-02 23:01   ` Brijesh Singh
2017-08-03  0:13     ` Laszlo Ersek
2017-08-03  1:09       ` Brijesh Singh
2017-08-03 14:35         ` Brijesh Singh
2017-08-03 14:40           ` Laszlo Ersek
2017-08-02 21:24 ` [PATCH 11/12] OvmfPkg/IoMmuDxe: abort harder on memory encryption mask failures Laszlo Ersek
2017-08-02 21:24 ` [PATCH 12/12] OvmfPkg/IoMmuDxe: Unmap(): recycle MAP_INFO after BusMasterCommonBuffer[64] Laszlo Ersek
2017-08-02 21:31 ` [PATCH 00/12] OvmfPkg/IoMmuDxe: cleanups and fixes Laszlo Ersek
2017-08-03 14:10 ` Brijesh Singh
2017-08-03 14:15   ` Laszlo Ersek
2017-08-05  1:25   ` Laszlo Ersek

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