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Message-ID: <ZtqqLSNSYpsD5Cgy@gondor.apana.org.au> Date: Fri, 6 Sep 2024 15:07:25 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: Amit Shah <amit@...nel.org> Cc: ashish.kalra@....com, thomas.lendacky@....com, bp@...en8.de, john.allen@....com, davem@...emloft.net, michael.roth@....com, linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org, amit.shah@....com Subject: Re: [PATCH] crypto: ccp: do not request interrupt on cmd completion when irqs disabled On Thu, Aug 29, 2024 at 12:20:07PM +0200, Amit Shah wrote: > From: Amit Shah <amit.shah@....com> > > While sending a command to the PSP, we always requested an interrupt > from the PSP after command completion. This worked for most cases. For > the special case of irqs being disabled -- e.g. when running within > crashdump or kexec contexts, we should not set the SEV_CMDRESP_IOC flag, > so the PSP knows to not attempt interrupt delivery. > > Fixes: 8ef979584ea8 ("crypto: ccp: Add panic notifier for SEV/SNP firmware shutdown on kdump") > > Based-on-patch-by: Tom Lendacky <thomas.lendacky@....com> > Signed-off-by: Amit Shah <amit.shah@....com> > --- > drivers/crypto/ccp/sev-dev.c | 13 ++++++++++++- > 1 file changed, 12 insertions(+), 1 deletion(-) Patch applied. Thanks. -- Email: Herbert Xu <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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