[SeaBIOS] [PATCH v10 3/6] Support for BIOS interrupt handler
Xu, Quan
quan.xu at intel.com
Thu Apr 30 15:21:40 CEST 2015
> -----Original Message-----
> From: Stefan Berger [mailto:stefanb at linux.vnet.ibm.com]
> Sent: Wednesday, April 29, 2015 7:18 PM
> To: Xu, Quan
> Cc: Kevin O'Connor; seabios at seabios.org; stefano.stabellini at eu.citrix.com;
> xen-devel at lists.xen.org; Daniel De Graaf; wei.liu2 at citrix.com
> Subject: Re: [PATCH v10 3/6] Support for BIOS interrupt handler
>
> On 04/21/2015 11:22 AM, Kevin O'Connor wrote:
> > On Mon, Mar 30, 2015 at 05:09:47AM +0000, Xu, Quan wrote:
> >>>
> > [...]
> >> I will go through all of these seabios patch, and try to make it compatible for
> Xen vTPM.
> >>
> > What's the status of this? Is it safe to push forward parts of
> > Stefan's patches, or does that represent a regression for Xen?
>
> Xu, any news? I would like to see these patches making it into the repository.
>
> Regards,
> Stefan
Stefan,
Sorry to reply so late to you. I try to make it compatible with Xen vTPM by below patch
Against your serious of patch(https://github.com/KevinOConnor/seabios/tree/tcg-testing ).
Also I have tested this patch, which is working.
### >>> patch
commit 2c556064695b0a979adb4039f13db1b29a19d3cf
Author: Quan Xu <quan.xu at intel.com>
Date: Thu Apr 30 19:43:04 2015 -0400
make SeaBios compatible with Xen vTPM.
Signed-off-by: Quan Xu <quan.xu at intel.com>
diff --git a/src/tcgbios.c b/src/tcgbios.c
index c837ab6..4cda800 100644
--- a/src/tcgbios.c
+++ b/src/tcgbios.c
@@ -23,7 +23,7 @@
#include "std/acpi.h" // RSDP_SIGNATURE, rsdt_descriptor
#include "bregs.h" // struct bregs
#include "sha1.h" // sha1
-
+#include "fw/paravirt.h" // runningOnXen
static const u8 Startup_ST_CLEAR[2] = { 0x00, TPM_ST_CLEAR };
static const u8 Startup_ST_STATE[2] = { 0x00, TPM_ST_STATE };
@@ -494,6 +494,8 @@ tpm_start(void)
return 0;
tpm_acpi_init();
+ if (runningOnXen())
+ return 0;
return tpm_startup();
}
### <<< patch
Thanks
Quan Xu
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