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 v11 06/26] virt: gunyah: msgq: Add hypercalls to send and receive messages
Date: Fri, 3 Mar 2023 17:06:12 -0800 [thread overview]
Message-ID: <20230304010632.2127470-7-quic_eberman@quicinc.com> (raw)
In-Reply-To: <20230304010632.2127470-1-quic_eberman@quicinc.com>
Add hypercalls to send and receive messages on a Gunyah message queue.
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
---
arch/arm64/gunyah/gunyah_hypercall.c | 31 ++++++++++++++++++++++++++++
include/linux/gunyah.h | 6 ++++++
2 files changed, 37 insertions(+)
diff --git a/arch/arm64/gunyah/gunyah_hypercall.c b/arch/arm64/gunyah/gunyah_hypercall.c
index 0d14e767e2c8..3420d8f286a9 100644
--- a/arch/arm64/gunyah/gunyah_hypercall.c
+++ b/arch/arm64/gunyah/gunyah_hypercall.c
@@ -41,6 +41,8 @@ EXPORT_SYMBOL_GPL(arch_is_gh_guest);
fn)
#define GH_HYPERCALL_HYP_IDENTIFY GH_HYPERCALL(0x8000)
+#define GH_HYPERCALL_MSGQ_SEND GH_HYPERCALL(0x801B)
+#define GH_HYPERCALL_MSGQ_RECV GH_HYPERCALL(0x801C)
/**
* gh_hypercall_hyp_identify() - Returns build information and feature flags
@@ -60,5 +62,34 @@ 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_msgq_send(u64 capid, size_t size, void *buff, int tx_flags, bool *ready)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_hvc(GH_HYPERCALL_MSGQ_SEND, capid, size, (uintptr_t)buff, tx_flags, 0, &res);
+
+ if (res.a0 == GH_ERROR_OK)
+ *ready = !!res.a1;
+
+ return res.a0;
+}
+EXPORT_SYMBOL_GPL(gh_hypercall_msgq_send);
+
+enum gh_error gh_hypercall_msgq_recv(u64 capid, void *buff, size_t size, size_t *recv_size,
+ bool *ready)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_hvc(GH_HYPERCALL_MSGQ_RECV, capid, (uintptr_t)buff, size, 0, &res);
+
+ if (res.a0 == GH_ERROR_OK) {
+ *recv_size = res.a1;
+ *ready = !!res.a2;
+ }
+
+ return res.a0;
+}
+EXPORT_SYMBOL_GPL(gh_hypercall_msgq_recv);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Gunyah Hypervisor Hypercalls");
diff --git a/include/linux/gunyah.h b/include/linux/gunyah.h
index bd080e3a6fc9..18cfbf5ee48b 100644
--- a/include/linux/gunyah.h
+++ b/include/linux/gunyah.h
@@ -108,4 +108,10 @@ struct gh_hypercall_hyp_identify_resp {
void gh_hypercall_hyp_identify(struct gh_hypercall_hyp_identify_resp *hyp_identity);
+#define GH_HYPERCALL_MSGQ_TX_FLAGS_PUSH BIT(0)
+
+enum gh_error gh_hypercall_msgq_send(u64 capid, size_t size, void *buff, int tx_flags, bool *ready);
+enum gh_error gh_hypercall_msgq_recv(u64 capid, void *buff, size_t size, size_t *recv_size,
+ bool *ready);
+
#endif
--
2.39.2
next prev parent reply other threads:[~2023-03-04 1:07 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-04 1:06 [PATCH v11 00/26] Drivers for gunyah hypervisor Elliot Berman
2023-03-04 1:06 ` [PATCH v11 01/26] docs: gunyah: Introduce Gunyah Hypervisor Elliot Berman
2023-03-04 1:06 ` [PATCH v11 02/26] dt-bindings: Add binding for gunyah hypervisor Elliot Berman
2023-03-04 1:06 ` [PATCH v11 03/26] gunyah: Common types and error codes for Gunyah hypercalls Elliot Berman
2023-03-21 14:23 ` Srinivas Kandagatla
2023-03-31 14:24 ` Alex Elder
2023-04-03 19:44 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 04/26] virt: gunyah: Add hypercalls to identify Gunyah Elliot Berman
2023-03-21 14:22 ` Srinivas Kandagatla
2023-03-31 14:24 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 05/26] virt: gunyah: Identify hypervisor version Elliot Berman
2023-03-21 15:48 ` Srinivas Kandagatla
2023-03-31 14:24 ` Alex Elder
2023-03-04 1:06 ` Elliot Berman [this message]
2023-03-21 15:49 ` [PATCH v11 06/26] virt: gunyah: msgq: Add hypercalls to send and receive messages Srinivas Kandagatla
2023-03-31 14:25 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 07/26] mailbox: Add Gunyah message queue mailbox Elliot Berman
2023-03-21 14:22 ` Srinivas Kandagatla
2023-03-31 14:25 ` Alex Elder
2023-04-03 20:15 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 08/26] gunyah: rsc_mgr: Add resource manager RPC core Elliot Berman
2023-03-31 14:25 ` Alex Elder
2023-04-03 20:34 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 09/26] gunyah: rsc_mgr: Add VM lifecycle RPC Elliot Berman
2023-03-31 14:25 ` Alex Elder
2023-04-03 21:09 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 10/26] gunyah: vm_mgr: Introduce basic VM Manager Elliot Berman
2023-03-21 14:23 ` Srinivas Kandagatla
2023-03-31 14:25 ` Alex Elder
2023-04-11 20:48 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 11/26] gunyah: rsc_mgr: Add RPC for sharing memory Elliot Berman
2023-03-31 14:26 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 12/26] gunyah: vm_mgr: Add/remove user memory regions Elliot Berman
2023-03-24 18:37 ` Will Deacon
2023-04-11 20:34 ` Elliot Berman
2023-04-11 21:19 ` Will Deacon
2023-04-12 20:48 ` Elliot Berman
2023-04-13 9:54 ` Will Deacon
2023-03-31 14:26 ` Alex Elder
2023-04-11 21:04 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 13/26] gunyah: vm_mgr: Add ioctls to support basic non-proxy VM boot Elliot Berman
2023-03-21 14:24 ` Srinivas Kandagatla
2023-04-11 21:07 ` Elliot Berman
2023-04-11 21:09 ` Alex Elder
2023-03-31 14:26 ` Alex Elder
2023-04-11 21:16 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 14/26] samples: Add sample userspace Gunyah VM Manager Elliot Berman
2023-03-31 14:26 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 15/26] gunyah: rsc_mgr: Add platform ops on mem_lend/mem_reclaim Elliot Berman
2023-03-21 14:23 ` Srinivas Kandagatla
2023-03-22 19:17 ` Elliot Berman
2023-03-31 14:26 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 16/26] firmware: qcom_scm: Register Gunyah platform ops Elliot Berman
2023-03-21 14:24 ` Srinivas Kandagatla
2023-03-21 18:40 ` Elliot Berman
2023-03-21 20:19 ` Srinivas Kandagatla
2023-03-04 1:06 ` [PATCH v11 17/26] docs: gunyah: Document Gunyah VM Manager Elliot Berman
2023-03-04 1:06 ` [PATCH v11 18/26] virt: gunyah: Translate gh_rm_hyp_resource into gunyah_resource Elliot Berman
2023-03-31 14:26 ` Alex Elder
2023-04-18 0:25 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 19/26] gunyah: vm_mgr: Add framework to add VM Functions Elliot Berman
2023-03-31 14:26 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 20/26] virt: gunyah: Add resource tickets Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-04-17 22:57 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 21/26] virt: gunyah: Add IO handlers Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 22/26] virt: gunyah: Add proxy-scheduled vCPUs Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-04-17 22:41 ` Elliot Berman
2023-04-18 12:46 ` Alex Elder
2023-04-18 17:18 ` Elliot Berman
2023-04-18 17:31 ` Alex Elder
2023-04-18 18:35 ` Elliot Berman
2023-03-04 1:06 ` [PATCH v11 23/26] virt: gunyah: Add hypercalls for sending doorbell Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 24/26] virt: gunyah: Add irqfd interface Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-04-17 22:55 ` Elliot Berman
2023-04-18 12:55 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 25/26] virt: gunyah: Add ioeventfd Elliot Berman
2023-03-31 14:27 ` Alex Elder
2023-03-04 1:06 ` [PATCH v11 26/26] MAINTAINERS: Add Gunyah hypervisor drivers section Elliot Berman
2023-03-31 14:24 ` [PATCH v11 00/26] Drivers for gunyah hypervisor Alex Elder
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