diff options
| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/crypto/nx/Kconfig | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/crypto/nx/Kconfig')
| -rw-r--r-- | drivers/crypto/nx/Kconfig | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/crypto/nx/Kconfig b/drivers/crypto/nx/Kconfig new file mode 100644 index 000000000..2a35e0e78 --- /dev/null +++ b/drivers/crypto/nx/Kconfig @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config CRYPTO_DEV_NX_ENCRYPT + tristate "Encryption acceleration support on pSeries platform" + depends on PPC_PSERIES && IBMVIO && !CPU_LITTLE_ENDIAN + default y + select CRYPTO_AES + select CRYPTO_CCM + help + Support for PowerPC Nest (NX) encryption acceleration. This + module supports acceleration for AES and SHA2 algorithms on + the pSeries platform. If you choose 'M' here, this module + will be called nx_crypto. + +config CRYPTO_DEV_NX_COMPRESS + tristate "Compression acceleration support" + default y + select CRYPTO_ALGAPI + select 842_DECOMPRESS + help + Support for PowerPC Nest (NX) compression acceleration. This + module supports acceleration for compressing memory with the 842 + algorithm using the cryptographic API. One of the platform + drivers must be selected also. If you choose 'M' here, this + module will be called nx_compress. + +if CRYPTO_DEV_NX_COMPRESS + +config CRYPTO_DEV_NX_COMPRESS_PSERIES + tristate "Compression acceleration support on pSeries platform" + depends on PPC_PSERIES && IBMVIO + depends on PPC_VAS + default y + help + Support for PowerPC Nest (NX) compression acceleration. This + module supports acceleration for compressing memory with the 842 + algorithm. This supports NX hardware on the pSeries platform. + If you choose 'M' here, this module will be called nx_compress_pseries. + +config CRYPTO_DEV_NX_COMPRESS_POWERNV + tristate "Compression acceleration support on PowerNV platform" + depends on PPC_POWERNV + depends on PPC_VAS + default y + help + Support for PowerPC Nest (NX) compression acceleration. This + module supports acceleration for compressing memory with the 842 + algorithm. This supports NX hardware on the PowerNV platform. + If you choose 'M' here, this module will be called nx_compress_powernv. + +endif |