From: "Wang, Jian J" <jian.j.wang@intel.com>
To: "Zeng, Star" <star.zeng@intel.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "Dong, Eric" <eric.dong@intel.com>
Subject: Re: [PATCH] MdeModulePkg/MdeModulePkg.dec: Clarify usage of PcdHeapGuardPropertyMask
Date: Thu, 21 Dec 2017 05:43:23 +0000 [thread overview]
Message-ID: <D827630B58408649ACB04F44C510003624CC1AFF@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <0C09AFA07DD0434D9E2A0C6AEB0483103B9C5C26@shsmsx102.ccr.corp.intel.com>
Thanks. .uni file will be updated accordingly.
Regards,
Jian
> -----Original Message-----
> From: Zeng, Star
> Sent: Thursday, December 21, 2017 1:15 PM
> To: Wang, Jian J <jian.j.wang@intel.com>; edk2-devel@lists.01.org
> Cc: Dong, Eric <eric.dong@intel.com>; Zeng, Star <star.zeng@intel.com>
> Subject: RE: [PATCH] MdeModulePkg/MdeModulePkg.dec: Clarify usage of
> PcdHeapGuardPropertyMask
>
> Please also the *.uni file accordingly, with that, Reviewed-by: Star Zeng
> <star.zeng@intel.com>
>
>
> Thanks,
> Star
> -----Original Message-----
> From: Wang, Jian J
> Sent: Thursday, December 21, 2017 1:08 PM
> To: edk2-devel@lists.01.org
> Cc: Zeng, Star <star.zeng@intel.com>; Dong, Eric <eric.dong@intel.com>
> Subject: [PATCH] MdeModulePkg/MdeModulePkg.dec: Clarify usage of
> PcdHeapGuardPropertyMask
>
> Cc: Star Zeng <star.zeng@intel.com>
> Cc: Eric Dong <eric.dong@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
> ---
> MdeModulePkg/MdeModulePkg.dec | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/MdeModulePkg/MdeModulePkg.dec
> b/MdeModulePkg/MdeModulePkg.dec
> index 8efad57766..d134ec798a 100644
> --- a/MdeModulePkg/MdeModulePkg.dec
> +++ b/MdeModulePkg/MdeModulePkg.dec
> @@ -939,13 +939,17 @@
>
> gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPoolType|0x0|UINT64|0x30
> 001053
>
> ## This mask is to control Heap Guard behavior.
> + # Note that due to the limit in pool memory implementation and the
> alignment
> + # requirement of UEFI spec, BIT7 is a try-best setting which cannot guarantee
> + # that the returned pool is exactly adjacent to head guard page or tail guard
> + # page.
> # BIT0 - Enable UEFI page guard.<BR>
> # BIT1 - Enable UEFI pool guard.<BR>
> # BIT2 - Enable SMM page guard.<BR>
> # BIT3 - Enable SMM pool guard.<BR>
> # BIT7 - The direction of Guard Page for Pool Guard.
> - # 0 - The returned pool is adjacent to the bottom guard page.<BR>
> - # 1 - The returned pool is adjacent to the top guard page.<BR>
> + # 0 - The returned pool is near the tail guard page.<BR>
> + # 1 - The returned pool is near the head guard page.<BR>
> # @Prompt The Heap Guard feature mask
>
> gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask|0x0|UINT8|0
> x30001054
>
> --
> 2.15.1.windows.2
prev parent reply other threads:[~2017-12-21 5:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-21 5:08 [PATCH] MdeModulePkg/MdeModulePkg.dec: Clarify usage of PcdHeapGuardPropertyMask Jian J Wang
2017-12-21 5:15 ` Zeng, Star
2017-12-21 5:43 ` Wang, Jian J [this message]
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