7f9ec7d816
- Return -EIO instead of success when the certificate buffer for SEV
guests is not large enough.
- Allow STIPB to be enabled with legacy IBSR. Legacy IBRS is cleared on
return to userspace for performance reasons, but the leaves user space
vulnerable to cross-thread attacks which STIBP prevents. Update the
documentation accordingly.
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Merge tag 'x86-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 updates from Thomas Gleixner:
"A small set of updates for x86:
- Return -EIO instead of success when the certificate buffer for SEV
guests is not large enough
- Allow STIPB to be enabled with legacy IBSR. Legacy IBRS is cleared
on return to userspace for performance reasons, but the leaves user
space vulnerable to cross-thread attacks which STIBP prevents.
Update the documentation accordingly"
* tag 'x86-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt/sev-guest: Return -EIO if certificate buffer is not large enough
Documentation/hw-vuln: Document the interaction between IBRS and STIBP
x86/speculation: Allow enabling STIBP with legacy IBRS
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| .. | ||
| ABI | ||
| PCI | ||
| RCU | ||
| accel | ||
| accounting | ||
| admin-guide | ||
| arc | ||
| arm | ||
| arm64 | ||
| block | ||
| bpf | ||
| cdrom | ||
| core-api | ||
| cpu-freq | ||
| crypto | ||
| dev-tools | ||
| devicetree | ||
| doc-guide | ||
| driver-api | ||
| fault-injection | ||
| fb | ||
| features | ||
| filesystems | ||
| firmware-guide | ||
| firmware_class | ||
| fpga | ||
| gpu | ||
| hid | ||
| hwmon | ||
| i2c | ||
| ia64 | ||
| iio | ||
| images | ||
| infiniband | ||
| input | ||
| isdn | ||
| kbuild | ||
| kernel-hacking | ||
| leds | ||
| litmus-tests | ||
| livepatch | ||
| locking | ||
| loongarch | ||
| m68k | ||
| maintainer | ||
| mhi | ||
| mips | ||
| misc-devices | ||
| mm | ||
| netlabel | ||
| netlink | ||
| networking | ||
| nios2 | ||
| nvdimm | ||
| nvme | ||
| openrisc | ||
| parisc | ||
| pcmcia | ||
| peci | ||
| power | ||
| powerpc | ||
| process | ||
| riscv | ||
| rust | ||
| s390 | ||
| scheduler | ||
| scsi | ||
| security | ||
| sh | ||
| sound | ||
| sparc | ||
| sphinx | ||
| sphinx-static | ||
| spi | ||
| staging | ||
| target | ||
| timers | ||
| tools | ||
| trace | ||
| translations | ||
| usb | ||
| userspace-api | ||
| virt | ||
| w1 | ||
| watchdog | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Changes | ||
| CodingStyle | ||
| Kconfig | ||
| Makefile | ||
| SubmittingPatches | ||
| arch.rst | ||
| atomic_bitops.txt | ||
| atomic_t.txt | ||
| conf.py | ||
| docutils.conf | ||
| dontdiff | ||
| index.rst | ||
| memory-barriers.txt | ||
| subsystem-apis.rst | ||