From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Mark Rutland <mark.rutland@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
kernel-team@android.com, Jonathan Corbet <corbet@lwn.net>,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
Sudeep Holla <sudeep.holla@arm.com>,
James Morse <james.morse@arm.com>,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>, Tejun Heo <tj@kernel.org>,
Dennis Zhou <dennis@kernel.org>, Christoph Lameter <cl@linux.com>,
David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>,
Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: [PATCH v4 06/26] psci: Add accessor for psci_0_1_function_ids
Date: Wed, 2 Dec 2020 18:41:02 +0000 [thread overview]
Message-ID: <20201202184122.26046-7-dbrazdil@google.com> (raw)
In-Reply-To: <20201202184122.26046-1-dbrazdil@google.com>
Make it possible to retrieve a copy of the psci_0_1_function_ids struct.
This is useful for KVM if it is configured to intercept host's PSCI SMCs.
Signed-off-by: David Brazdil <dbrazdil@google.com>
---
drivers/firmware/psci/psci.c | 12 +++++-------
include/linux/psci.h | 9 +++++++++
2 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 593fdd0e09a2..f5fc429cae3f 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -58,15 +58,13 @@ typedef unsigned long (psci_fn)(unsigned long, unsigned long,
unsigned long, unsigned long);
static psci_fn *invoke_psci_fn;
-struct psci_0_1_function_ids {
- u32 cpu_suspend;
- u32 cpu_on;
- u32 cpu_off;
- u32 migrate;
-};
-
static struct psci_0_1_function_ids psci_0_1_function_ids;
+struct psci_0_1_function_ids get_psci_0_1_function_ids(void)
+{
+ return psci_0_1_function_ids;
+}
+
#define PSCI_0_2_POWER_STATE_MASK \
(PSCI_0_2_POWER_STATE_ID_MASK | \
PSCI_0_2_POWER_STATE_TYPE_MASK | \
diff --git a/include/linux/psci.h b/include/linux/psci.h
index 2a1bfb890e58..4ca0060a3fc4 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -34,6 +34,15 @@ struct psci_operations {
extern struct psci_operations psci_ops;
+struct psci_0_1_function_ids {
+ u32 cpu_suspend;
+ u32 cpu_on;
+ u32 cpu_off;
+ u32 migrate;
+};
+
+struct psci_0_1_function_ids get_psci_0_1_function_ids(void);
+
#if defined(CONFIG_ARM_PSCI_FW)
int __init psci_dt_init(void);
#else
--
2.29.2.454.gaff20da3a2-goog
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next prev parent reply other threads:[~2020-12-02 18:43 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 18:40 [PATCH v4 00/26] Opt-in always-on nVHE hypervisor David Brazdil
2020-12-02 18:40 ` [PATCH v4 01/26] kvm: arm64: Add kvm-arm.mode early kernel parameter David Brazdil
2020-12-02 18:40 ` [PATCH v4 02/26] kvm: arm64: Add ARM64_KVM_PROTECTED_MODE CPU capability David Brazdil
2020-12-02 18:40 ` [PATCH v4 03/26] psci: Support psci_ops.get_version for v0.1 David Brazdil
2020-12-02 18:41 ` [PATCH v4 04/26] psci: Split functions to v0.1 and v0.2+ variants David Brazdil
2020-12-03 10:42 ` Mark Rutland
2020-12-02 18:41 ` [PATCH v4 05/26] psci: Replace psci_function_id array with a struct David Brazdil
2020-12-03 10:43 ` Mark Rutland
2020-12-02 18:41 ` David Brazdil [this message]
2020-12-03 10:47 ` [PATCH v4 06/26] psci: Add accessor for psci_0_1_function_ids Mark Rutland
2020-12-03 10:51 ` David Brazdil
2020-12-02 18:41 ` [PATCH v4 07/26] arm64: Make cpu_logical_map() take unsigned int David Brazdil
2020-12-02 18:41 ` [PATCH v4 08/26] arm64: Extract parts of el2_setup into a macro David Brazdil
2020-12-02 18:41 ` [PATCH v4 09/26] kvm: arm64: Remove vector_ptr param of hyp-init David Brazdil
2020-12-02 18:41 ` [PATCH v4 10/26] kvm: arm64: Move hyp-init params to a per-CPU struct David Brazdil
2020-12-02 18:41 ` [PATCH v4 11/26] kvm: arm64: Init MAIR/TCR_EL2 from params struct David Brazdil
2020-12-02 18:41 ` [PATCH v4 12/26] kvm: arm64: Add .hyp.data..ro_after_init ELF section David Brazdil
2020-12-02 18:41 ` [PATCH v4 13/26] kvm: arm64: Support per_cpu_ptr in nVHE hyp code David Brazdil
2020-12-02 18:41 ` [PATCH v4 14/26] kvm: arm64: Create nVHE copy of cpu_logical_map David Brazdil
2020-12-02 18:41 ` [PATCH v4 15/26] kvm: arm64: Add SMC handler in nVHE EL2 David Brazdil
2020-12-03 13:31 ` Marc Zyngier
2020-12-02 18:41 ` [PATCH v4 16/26] kvm: arm64: Bootstrap PSCI " David Brazdil
2020-12-03 10:55 ` Mark Rutland
2020-12-03 13:46 ` Marc Zyngier
2020-12-02 18:41 ` [PATCH v4 17/26] kvm: arm64: Add offset for hyp VA <-> PA conversion David Brazdil
2020-12-07 22:29 ` Qian Cai
2020-12-08 10:08 ` David Brazdil
2020-12-02 18:41 ` [PATCH v4 18/26] kvm: arm64: Forward safe PSCI SMCs coming from host David Brazdil
2020-12-02 18:41 ` [PATCH v4 19/26] kvm: arm64: Extract __do_hyp_init into a helper function David Brazdil
2020-12-02 18:41 ` [PATCH v4 20/26] kvm: arm64: Add function to enter host from KVM nVHE hyp code David Brazdil
2020-12-02 18:41 ` [PATCH v4 21/26] kvm: arm64: Intercept host's CPU_ON SMCs David Brazdil
2020-12-02 18:41 ` [PATCH v4 22/26] kvm: arm64: Intercept host's CPU_SUSPEND PSCI SMCs David Brazdil
2020-12-02 18:41 ` [PATCH v4 23/26] kvm: arm64: Intercept host's SYSTEM_SUSPEND " David Brazdil
2020-12-02 18:41 ` [PATCH v4 24/26] kvm: arm64: Keep nVHE EL2 vector installed David Brazdil
2020-12-02 18:41 ` [PATCH v4 25/26] kvm: arm64: Trap host SMCs in protected mode David Brazdil
2020-12-02 18:41 ` [PATCH v4 26/26] kvm: arm64: Fix EL2 mode availability checks David Brazdil
2020-12-03 19:23 ` [PATCH v4 00/26] Opt-in always-on nVHE hypervisor Marc Zyngier
2020-12-08 19:14 ` David Brazdil
2020-12-08 20:12 ` Marc Zyngier
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