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linux/drivers/crypto
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Brijesh Singh 3702a0585e crypto: ccp - add timeout support in the SEV command 
Currently, the CCP driver assumes that the SEV command issued to the PSP
will always return (i.e. it will never hang).  But recently, firmware bugs
have shown that a command can hang.  Since of the SEV commands are used
in probe routines, this can cause boot hangs and/or loss of virtualization
capabilities.

To protect against firmware bugs, add a timeout in the SEV command
execution flow.  If a command does not complete within the specified
timeout then return -ETIMEOUT and stop the driver from executing any
further commands since the state of the SEV firmware is unknown.

Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gary Hook <Gary.Hook@amd.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-09-13 13:27:43 +08:00
..
amcc crypto: skcipher - remove useless setting of type flags 2018-07-09 00:30:27 +08:00
axis crypto: skcipher - remove useless setting of type flags 2018-07-09 00:30:27 +08:00
bcm crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
caam Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-29 13:38:39 -07:00
cavium crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions. 2018-08-25 19:50:44 +08:00
ccp crypto: ccp - add timeout support in the SEV command 2018-09-13 13:27:43 +08:00
ccree crypto: ccree - allow bigger than sector XTS op 2018-08-03 18:06:05 +08:00
chelsio Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-29 13:38:39 -07:00
hisilicon crypto: hisilicon - sec_send_request() can be static 2018-08-07 17:51:39 +08:00
inside-secure crypto: inside-secure - initialize first_rdesc to make GCC happy 2018-07-20 13:51:22 +08:00
marvell crypto: remove redundant type flags from tfm allocation 2018-07-09 00:30:29 +08:00
mediatek headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
nx powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
qat crypto: qat/adf_aer - Replace GFP_ATOMIC with GFP_KERNEL in adf_dev_aer_schedule_reset() 2018-08-03 18:05:49 +08:00
qce Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
rockchip
stm32 Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
sunxi-ss crypto: skcipher - remove useless setting of type flags 2018-07-09 00:30:27 +08:00
ux500 Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
virtio Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-15 16:01:47 -07:00
vmx Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-29 13:38:39 -07:00
atmel-aes-regs.h
atmel-aes.c crypto: atmel-aes - fix the keys zeroing on errors 2018-03-03 00:03:40 +08:00
atmel-authenc.h
atmel-ecc.c crypto: atmel-ecc - remove overly verbose dev_info 2018-06-22 23:03:08 +08:00
atmel-ecc.h
atmel-sha-regs.h
atmel-sha.c crypto: remove redundant type flags from tfm allocation 2018-07-09 00:30:29 +08:00
atmel-tdes-regs.h
atmel-tdes.c crypto: atmel - Delete error messages for a failed memory allocation in six functions 2018-02-22 22:17:00 +08:00
exynos-rng.c crypto: drivers - simplify getting .drvdata 2018-04-28 16:09:35 +08:00
geode-aes.c
geode-aes.h
hifn_795x.c
img-hash.c
ixp4xx_crypto.c crypto: ixp4xx - don't leak pointers to authenc keys 2018-03-31 01:33:12 +08:00
Kconfig crypto: hisilicon - SEC security accelerator driver 2018-08-03 18:06:02 +08:00
Makefile crypto: hisilicon - SEC security accelerator driver 2018-08-03 18:06:02 +08:00
mxc-scc.c
mxs-dcp.c crypto: mxs-dcp - Add empty hash export and import 2018-02-15 23:23:44 +08:00
n2_asm.S
n2_core.c crypto: ahash - remove useless setting of type flags 2018-07-09 00:30:25 +08:00
n2_core.h
omap-aes-gcm.c
omap-aes.c crypto: omap-aes - make queue length configurable 2018-03-09 22:45:39 +08:00
omap-aes.h crypto: omap - convert to new crypto engine API 2018-02-15 23:26:51 +08:00
omap-crypto.c crypto: omap-crypto - Verify page zone scatterlists before starting DMA 2018-03-09 22:45:36 +08:00
omap-crypto.h
omap-des.c crypto: omap - convert to new crypto engine API 2018-02-15 23:26:51 +08:00
omap-sham.c crypto: ahash - remove useless setting of type flags 2018-07-09 00:30:25 +08:00
padlock-aes.c crypto: padlock-aes - Fix Nano workaround data corruption 2018-07-20 13:47:42 +08:00
padlock-sha.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
picoxcell_crypto_regs.h
picoxcell_crypto.c crypto: drivers - simplify getting .drvdata 2018-04-28 16:09:35 +08:00
qcom-rng.c crypto: qcom-rng - Add ACPI support 2018-07-27 19:04:32 +08:00
s5p-sss.c crypto: ahash - remove useless setting of type flags 2018-07-09 00:30:25 +08:00
sahara.c crypto: sharah - Unregister correct algorithms for SAHARA 3 2018-07-20 13:51:22 +08:00
talitos.c crypto: ahash - remove useless setting of cra_type 2018-07-09 00:30:26 +08:00
talitos.h