From: Elliot Berman <quic_eberman@quicinc.com>
To: Alex Elder <elder@linaro.org>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Elliot Berman <quic_eberman@quicinc.com>,
Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>
Cc: Murali Nalajala <quic_mnalajal@quicinc.com>,
Trilok Soni <quic_tsoni@quicinc.com>,
Srivatsa Vaddagiri <quic_svaddagi@quicinc.com>,
Carl van Schaik <quic_cvanscha@quicinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
"Konrad Dybcio" <konrad.dybcio@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Jonathan Corbet <corbet@lwn.net>,
Bagas Sanjaya <bagasdotme@gmail.com>,
Andy Gross <agross@kernel.org>,
Jassi Brar <jassisinghbrar@gmail.com>,
<linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v13 21/24] virt: gunyah: Add hypercalls for sending doorbell
Date: Tue, 9 May 2023 13:47:58 -0700 [thread overview]
Message-ID: <20230509204801.2824351-22-quic_eberman@quicinc.com> (raw)
In-Reply-To: <20230509204801.2824351-1-quic_eberman@quicinc.com>
Gunyah doorbells allow two virtual machines to signal each other using
interrupts. Add the hypercalls needed to assert the interrupt.
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
---
arch/arm64/gunyah/gunyah_hypercall.c | 25 +++++++++++++++++++++++++
include/linux/gunyah.h | 3 +++
2 files changed, 28 insertions(+)
diff --git a/arch/arm64/gunyah/gunyah_hypercall.c b/arch/arm64/gunyah/gunyah_hypercall.c
index 5f33f53e05a9..3d48c8650851 100644
--- a/arch/arm64/gunyah/gunyah_hypercall.c
+++ b/arch/arm64/gunyah/gunyah_hypercall.c
@@ -33,6 +33,8 @@ EXPORT_SYMBOL_GPL(arch_is_gh_guest);
fn)
#define GH_HYPERCALL_HYP_IDENTIFY GH_HYPERCALL(0x8000)
+#define GH_HYPERCALL_BELL_SEND GH_HYPERCALL(0x8012)
+#define GH_HYPERCALL_BELL_SET_MASK GH_HYPERCALL(0x8015)
#define GH_HYPERCALL_MSGQ_SEND GH_HYPERCALL(0x801B)
#define GH_HYPERCALL_MSGQ_RECV GH_HYPERCALL(0x801C)
#define GH_HYPERCALL_VCPU_RUN GH_HYPERCALL(0x8065)
@@ -55,6 +57,29 @@ void gh_hypercall_hyp_identify(struct gh_hypercall_hyp_identify_resp *hyp_identi
}
EXPORT_SYMBOL_GPL(gh_hypercall_hyp_identify);
+enum gh_error gh_hypercall_bell_send(u64 capid, u64 new_flags, u64 *old_flags)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_hvc(GH_HYPERCALL_BELL_SEND, capid, new_flags, 0, &res);
+
+ if (res.a0 == GH_ERROR_OK && old_flags)
+ *old_flags = res.a1;
+
+ return res.a0;
+}
+EXPORT_SYMBOL_GPL(gh_hypercall_bell_send);
+
+enum gh_error gh_hypercall_bell_set_mask(u64 capid, u64 enable_mask, u64 ack_mask)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_hvc(GH_HYPERCALL_BELL_SET_MASK, capid, enable_mask, ack_mask, 0, &res);
+
+ return res.a0;
+}
+EXPORT_SYMBOL_GPL(gh_hypercall_bell_set_mask);
+
enum gh_error gh_hypercall_msgq_send(u64 capid, size_t size, void *buff, u64 tx_flags, bool *ready)
{
struct arm_smccc_res res;
diff --git a/include/linux/gunyah.h b/include/linux/gunyah.h
index cd5704a82c6a..1f1685518bf3 100644
--- a/include/linux/gunyah.h
+++ b/include/linux/gunyah.h
@@ -171,6 +171,9 @@ static inline u16 gh_api_version(const struct gh_hypercall_hyp_identify_resp *gh
void gh_hypercall_hyp_identify(struct gh_hypercall_hyp_identify_resp *hyp_identity);
+enum gh_error gh_hypercall_bell_send(u64 capid, u64 new_flags, u64 *old_flags);
+enum gh_error gh_hypercall_bell_set_mask(u64 capid, u64 enable_mask, u64 ack_mask);
+
#define GH_HYPERCALL_MSGQ_TX_FLAGS_PUSH BIT(0)
enum gh_error gh_hypercall_msgq_send(u64 capid, size_t size, void *buff, u64 tx_flags, bool *ready);
--
2.40.0
next prev parent reply other threads:[~2023-05-09 20:51 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-09 20:47 [PATCH v13 00/24] Drivers for Gunyah hypervisor Elliot Berman
2023-05-09 20:47 ` [PATCH v13 01/24] dt-bindings: Add binding for gunyah hypervisor Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 02/24] gunyah: Common types and error codes for Gunyah hypercalls Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-06-05 21:31 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 03/24] virt: gunyah: Add hypercalls to identify Gunyah Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 04/24] virt: gunyah: msgq: Add hypercalls to send and receive messages Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-06-05 21:31 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 05/24] mailbox: Add Gunyah message queue mailbox Elliot Berman
2023-05-24 6:29 ` Dmitry Baryshkov
2023-06-05 19:47 ` Alex Elder
2023-06-05 21:32 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 06/24] gunyah: rsc_mgr: Add resource manager RPC core Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-06-06 12:45 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 07/24] gunyah: rsc_mgr: Add VM lifecycle RPC Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-06-06 12:49 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 08/24] gunyah: vm_mgr: Introduce basic VM Manager Elliot Berman
2023-06-05 19:47 ` Alex Elder
2023-06-06 12:51 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 09/24] gunyah: rsc_mgr: Add RPC for sharing memory Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-06-09 22:35 ` Elliot Berman
2023-06-06 13:35 ` Srinivas Kandagatla
2023-05-09 20:47 ` [PATCH v13 10/24] gunyah: vm_mgr: Add/remove user memory regions Elliot Berman
2023-05-19 11:59 ` Will Deacon
2023-05-19 17:02 ` Elliot Berman
2023-06-05 14:18 ` Will Deacon
2023-06-07 15:54 ` Elliot Berman
2023-06-22 23:56 ` Elliot Berman
2023-07-13 20:28 ` Elliot Berman
2023-07-14 12:13 ` Will Deacon
2023-07-19 2:28 ` Elliot Berman
2023-07-20 10:39 ` Will Deacon
2023-06-13 17:54 ` Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 11/24] gunyah: vm_mgr: Add ioctls to support basic non-proxy VM boot Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 12/24] samples: Add sample userspace Gunyah VM Manager Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 13/24] gunyah: rsc_mgr: Add platform ops on mem_lend/mem_reclaim Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 14/24] virt: gunyah: Add Qualcomm Gunyah platform ops Elliot Berman
2023-06-05 19:48 ` Alex Elder
2023-06-07 15:55 ` Elliot Berman
2023-05-09 20:47 ` [PATCH v13 15/24] docs: gunyah: Document Gunyah VM Manager Elliot Berman
2023-06-05 19:49 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 16/24] virt: gunyah: Translate gh_rm_hyp_resource into gunyah_resource Elliot Berman
2023-06-05 19:49 ` Alex Elder
2023-06-09 20:00 ` Elliot Berman
2023-05-09 20:47 ` [PATCH v13 17/24] gunyah: vm_mgr: Add framework for VM Functions Elliot Berman
2023-06-05 19:49 ` Alex Elder
2023-06-09 19:49 ` Elliot Berman
2023-06-12 12:57 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 18/24] virt: gunyah: Add resource tickets Elliot Berman
2023-06-05 19:49 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 19/24] virt: gunyah: Add IO handlers Elliot Berman
2023-06-05 19:50 ` Alex Elder
2023-05-09 20:47 ` [PATCH v13 20/24] virt: gunyah: Add proxy-scheduled vCPUs Elliot Berman
2023-06-05 19:50 ` Alex Elder
2023-05-09 20:47 ` Elliot Berman [this message]
2023-06-05 19:50 ` [PATCH v13 21/24] virt: gunyah: Add hypercalls for sending doorbell Alex Elder
2023-05-09 20:47 ` [PATCH v13 22/24] virt: gunyah: Add irqfd interface Elliot Berman
2023-06-05 19:50 ` Alex Elder
2023-06-09 18:22 ` Elliot Berman
2023-06-09 18:28 ` Alex Elder
2023-05-09 20:48 ` [PATCH v13 23/24] virt: gunyah: Add ioeventfd Elliot Berman
2023-06-05 19:50 ` Alex Elder
2023-06-09 17:33 ` Elliot Berman
2023-06-09 17:46 ` Alex Elder
2023-05-09 20:48 ` [PATCH v13 24/24] MAINTAINERS: Add Gunyah hypervisor drivers section Elliot Berman
2023-06-05 19:50 ` Alex Elder
2023-05-24 6:47 ` [PATCH v13 00/24] Drivers for Gunyah hypervisor Dmitry Baryshkov
2023-05-24 17:13 ` Alex Bennée
2023-06-13 23:02 ` Elliot Berman
2023-06-05 19:47 ` Alex Elder
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