qemu/target
Peter Maydell dc8bc9d657 target/arm: Report KVM's actual PSCI version to guest in dtb
When we're using KVM, the PSCI implementation is provided by the
kernel, but QEMU has to tell the guest about it via the device tree.
Currently we look at the KVM_CAP_ARM_PSCI_0_2 capability to determine
if the kernel is providing at least PSCI 0.2, but if the kernel
provides a newer version than that we will still only tell the guest
it has PSCI 0.2.  (This is fairly harmless; it just means the guest
won't use newer parts of the PSCI API.)

The kernel exposes the specific PSCI version it is implementing via
the ONE_REG API; use this to report in the dtb that the PSCI
implementation is 1.0-compatible if appropriate.  (The device tree
binding currently only distinguishes "pre-0.2", "0.2-compatible" and
"1.0-compatible".)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20220224134655.1207865-1-peter.maydell@linaro.org
2022-03-02 19:27:37 +00:00
..
alpha exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
arm target/arm: Report KVM's actual PSCI version to guest in dtb 2022-03-02 19:27:37 +00:00
avr Trivial branch pull request 20220222 2022-02-22 20:17:09 +00:00
cris exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
hexagon exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
hppa tcg: Remove dh_alias indirection for dh_typecode 2022-02-28 08:04:06 -10:00
i386 tcg: Remove dh_alias indirection for dh_typecode 2022-02-28 08:04:06 -10:00
m68k tcg: Remove dh_alias indirection for dh_typecode 2022-02-28 08:04:06 -10:00
microblaze exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
mips exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
nios2 linux-user/nios2: Map a real kuser page 2022-01-06 11:40:52 +01:00
openrisc exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
ppc target/ppc: implement lxvr[bhwd]/stxvr[bhwd]x 2022-03-02 06:51:38 +01:00
riscv target: Add missing "qemu/timer.h" include 2022-02-21 10:18:06 +01:00
rx target/rx: Remove unused ENV_OFFSET definition 2022-02-21 18:18:51 +01:00
s390x s390x/cpumodel: Bump up QEMU model to a stripped-down IBM z15 GA1 2022-02-28 11:29:15 +01:00
sh4 exec/memop: Adding signedness to quad definitions 2022-01-08 15:46:10 +10:00
sparc exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
tricore exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
xtensa exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
meson.build Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00