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Date: Wed, 1 Nov 2017 16:16:01 -0500 From: Brijesh Singh <brijesh.singh@....com> To: kvm@...r.kernel.org, linux-kernel@...r.kernel.org Cc: bp@...en8.de, Brijesh Singh <brijesh.singh@....com>, Paolo Bonzini <pbonzini@...hat.com>, Radim Krčmář <rkrcmar@...hat.com>, Borislav Petkov <bp@...e.de>, Herbert Xu <herbert@...dor.apana.org.au>, Gary Hook <gary.hook@....com>, Tom Lendacky <thomas.lendacky@....com>, linux-crypto@...r.kernel.org Subject: [Part2 PATCH v7 16/38] crypto: ccp: Implement SEV_PEK_GEN ioctl command The SEV_PEK_GEN command is used to generate a new Platform Endorsement Key (PEK). The command is defined in SEV spec section 5.6. Cc: Paolo Bonzini <pbonzini@...hat.com> Cc: "Radim Krčmář" <rkrcmar@...hat.com> Cc: Borislav Petkov <bp@...e.de> Cc: Herbert Xu <herbert@...dor.apana.org.au> Cc: Gary Hook <gary.hook@....com> Cc: Tom Lendacky <thomas.lendacky@....com> Cc: linux-crypto@...r.kernel.org Cc: kvm@...r.kernel.org Cc: linux-kernel@...r.kernel.org Reviewed-by: Borislav Petkov <bp@...e.de> Improvements-by: Borislav Petkov <bp@...e.de> Signed-off-by: Brijesh Singh <brijesh.singh@....com> Acked-by: Gary R Hook <gary.hook@....com> --- drivers/crypto/ccp/psp-dev.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index ef473ec4a413..2c28c36d7ae8 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -285,6 +285,19 @@ static int sev_ioctl_do_platform_status(struct sev_issue_cmd *argp) return ret; } +static int sev_ioctl_do_pek_pdh_gen(int cmd, struct sev_issue_cmd *argp) +{ + int rc; + + if (psp_master->sev_state == SEV_STATE_UNINIT) { + rc = __sev_platform_init_locked(psp_master->sev_init, &argp->error); + if (rc) + return rc; + } + + return __sev_do_cmd_locked(cmd, 0, &argp->error); +} + static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) { void __user *argp = (void __user *)arg; @@ -313,6 +326,9 @@ static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) case SEV_PLATFORM_STATUS: ret = sev_ioctl_do_platform_status(&input); break; + case SEV_PEK_GEN: + ret = sev_ioctl_do_pek_pdh_gen(SEV_CMD_PEK_GEN, &input); + break; default: ret = -EINVAL; goto out; -- 2.9.5
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