44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
|
From 1e32685272ff1932b9ca022db8717720fc901d0e Mon Sep 17 00:00:00 2001
|
||
|
|
From: tangbinzy <tangbin_yewu@cmss.chinamobile.com>
|
||
|
|
Date: Mon, 6 Nov 2023 06:17:47 +0000
|
||
|
|
Subject: [PATCH] tpm_crb: mark command buffer as dirty on request completion
|
||
|
|
mainline inclusion commit e37a0ef4605e5d2041785ff3fc89ca6021faf7a0 category:
|
||
|
|
bugfix
|
||
|
|
|
||
|
|
---------------------------------------------------------------
|
||
|
|
|
||
|
|
At the moment, there doesn't seems to be any way to know that QEMU
|
||
|
|
made modification to the command buffer. This is potentially an issue
|
||
|
|
on Xen while migrating a guest, as modification to the buffer after
|
||
|
|
the migration as started could be ignored and not transfered to the
|
||
|
|
destination.
|
||
|
|
|
||
|
|
Mark the memory region of the command buffer as dirty once a request
|
||
|
|
is completed.
|
||
|
|
|
||
|
|
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
|
||
|
|
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
|
||
|
|
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
|
||
|
|
Message-id: 20220411144749.47185-1-anthony.perard@citrix.com
|
||
|
|
|
||
|
|
Signed-off-by: tangbinzy <tangbin_yewu@cmss.chinamobile.com>
|
||
|
|
---
|
||
|
|
hw/tpm/tpm_crb.c | 1 +
|
||
|
|
1 file changed, 1 insertion(+)
|
||
|
|
|
||
|
|
diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
|
||
|
|
index 58ebd1469c..c05972736a 100644
|
||
|
|
--- a/hw/tpm/tpm_crb.c
|
||
|
|
+++ b/hw/tpm/tpm_crb.c
|
||
|
|
@@ -196,6 +196,7 @@ static void tpm_crb_request_completed(TPMIf *ti, int ret)
|
||
|
|
ARRAY_FIELD_DP32(s->regs, CRB_CTRL_STS,
|
||
|
|
tpmSts, 1); /* fatal error */
|
||
|
|
}
|
||
|
|
+ memory_region_set_dirty(&s->cmdmem, 0, CRB_CTRL_CMD_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static enum TPMVersion tpm_crb_get_version(TPMIf *ti)
|
||
|
|
--
|
||
|
|
2.27.0
|
||
|
|
|