From: Elliot Berman <quic_eberman@quicinc.com>
To: Bjorn Andersson <quic_bjorande@quicinc.com>
Cc: Elliot Berman <quic_eberman@quicinc.com>,
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>,
Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>,
Andy Gross <agross@kernel.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Jassi Brar <jassisinghbrar@gmail.com>,
<linux-arm-kernel@lists.infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Marc Zyngier <maz@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Jonathan Corbet <corbet@lwn.net>, "Will Deacon" <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
"Arnd Bergmann" <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<devicetree@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v5 08/13] virt: gunyah: msgq: Add hypercalls to send and receive messages
Date: Mon, 10 Oct 2022 17:08:35 -0700 [thread overview]
Message-ID: <20221011000840.289033-9-quic_eberman@quicinc.com> (raw)
In-Reply-To: <20221011000840.289033-1-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/hypercall.c | 33 +++++++++++++++++++++++++++++++++
include/asm-generic/gunyah.h | 5 +++++
2 files changed, 38 insertions(+)
diff --git a/arch/arm64/gunyah/hypercall.c b/arch/arm64/gunyah/hypercall.c
index 5b08c9d80de0..042cca31879e 100644
--- a/arch/arm64/gunyah/hypercall.c
+++ b/arch/arm64/gunyah/hypercall.c
@@ -26,6 +26,8 @@
| ((fn) & GH_CALL_FUNCTION_NUM_MASK))
#define GH_HYPERCALL_HYP_IDENTIFY GH_HYPERCALL(0x0000)
+#define GH_HYPERCALL_MSGQ_SEND GH_HYPERCALL(0x001B)
+#define GH_HYPERCALL_MSGQ_RECV GH_HYPERCALL(0x001C)
/**
* gh_hypercall_get_uid() - Returns a UID when running under a Gunyah hypervisor.
@@ -67,5 +69,36 @@ void gh_hypercall_hyp_identify(struct gh_hypercall_hyp_identify_resp *hyp_identi
}
EXPORT_SYMBOL_GPL(gh_hypercall_hyp_identify);
+int gh_hypercall_msgq_send(u64 capid, size_t size, uintptr_t buff, int tx_flags, bool *ready)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_hvc(GH_HYPERCALL_MSGQ_SEND, capid, size, buff, tx_flags, 0, &res);
+
+ if (res.a0)
+ return res.a0;
+
+ *ready = res.a1;
+
+ return res.a0;
+}
+EXPORT_SYMBOL_GPL(gh_hypercall_msgq_send);
+
+int gh_hypercall_msgq_recv(u64 capid, uintptr_t 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, buff, size, 0, &res);
+
+ if (res.a0)
+ return res.a0;
+
+ *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/asm-generic/gunyah.h b/include/asm-generic/gunyah.h
index 8f9d4c649ba8..34c41c8393d0 100644
--- a/include/asm-generic/gunyah.h
+++ b/include/asm-generic/gunyah.h
@@ -110,4 +110,9 @@ extern struct gh_hypercall_hyp_identify_resp gunyah_api;
void gh_hypercall_get_uid(u32 *uid);
void gh_hypercall_hyp_identify(struct gh_hypercall_hyp_identify_resp *hyp_identity);
+#define GH_HYPERCALL_MSGQ_TX_FLAGS_PUSH BIT(0)
+
+int gh_hypercall_msgq_send(u64 capid, size_t size, uintptr_t buff, int tx_flags, bool *ready);
+int gh_hypercall_msgq_recv(u64 capid, uintptr_t buff, size_t size, size_t *recv_size, bool *ready);
+
#endif
--
2.25.1
next prev parent reply other threads:[~2022-10-11 0:09 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-11 0:08 [PATCH v5 00/13] Drivers for gunyah hypervisor Elliot Berman
2022-10-11 0:08 ` [PATCH v5 01/13] docs: gunyah: Introduce Gunyah Hypervisor Elliot Berman
2022-10-11 9:36 ` Bagas Sanjaya
2022-10-11 0:08 ` [PATCH v5 02/13] dt-bindings: Add binding for gunyah hypervisor Elliot Berman
2022-10-12 15:56 ` Rob Herring
2022-10-13 23:58 ` Elliot Berman
2022-10-26 21:16 ` Rob Herring
2022-10-27 16:17 ` Elliot Berman
2022-10-27 19:55 ` Krzysztof Kozlowski
2022-11-01 3:19 ` Elliot Berman
2022-11-02 18:47 ` Krzysztof Kozlowski
2022-10-11 0:08 ` [PATCH v5 03/13] gunyah: Common types and error codes for Gunyah hypercalls Elliot Berman
2022-10-11 7:21 ` Greg Kroah-Hartman
2022-10-11 18:21 ` Elliot Berman
2022-10-11 18:48 ` Greg Kroah-Hartman
2022-10-11 18:50 ` Trilok Soni
2022-10-11 19:01 ` Greg Kroah-Hartman
2022-10-11 0:08 ` [PATCH v5 04/13] arm64: smccc: Include alternative-macros.h Elliot Berman
2022-10-11 7:22 ` Greg Kroah-Hartman
2022-10-11 22:45 ` Elliot Berman
2022-10-11 0:08 ` [PATCH v5 05/13] virt: gunyah: Add hypercalls to identify Gunyah Elliot Berman
2022-10-11 6:22 ` [PATCH v5 5/13] " Jiri Slaby
2022-10-12 21:31 ` [PATCH v5 05/13] " Dmitry Baryshkov
2022-10-11 0:08 ` [PATCH v5 06/13] virt: gunyah: Identify hypervisor version Elliot Berman
2022-10-11 6:13 ` Greg Kroah-Hartman
2022-10-13 23:00 ` Elliot Berman
2022-10-14 7:36 ` Greg Kroah-Hartman
2022-10-12 22:45 ` kernel test robot
2022-10-11 0:08 ` [PATCH v5 07/13] mailbox: Allow direct registration to a channel Elliot Berman
2022-10-11 0:08 ` Elliot Berman [this message]
2022-10-11 0:08 ` [PATCH v5 09/13] mailbox: Add Gunyah message queue mailbox Elliot Berman
2022-10-12 21:47 ` Dmitry Baryshkov
2022-10-13 22:32 ` Elliot Berman
2022-10-17 8:43 ` Dmitry Baryshkov
2022-10-11 0:08 ` [PATCH v5 10/13] gunyah: rsc_mgr: Add resource manager RPC core Elliot Berman
2022-10-12 22:52 ` Dmitry Baryshkov
2022-10-13 22:32 ` Elliot Berman
2022-10-17 8:37 ` Dmitry Baryshkov
2022-10-11 0:08 ` [PATCH v5 11/13] gunyah: rsc_mgr: Add RPC for console services Elliot Berman
2022-10-11 0:08 ` [PATCH v5 12/13] gunyah: rsc_mgr: Add subdevices bus Elliot Berman
2022-10-11 0:08 ` [PATCH v5 13/13] tty: gunyah: Add tty console driver for RM Console Services Elliot Berman
2022-10-11 6:02 ` Jiri Slaby
2022-10-11 11:09 ` Arnd Bergmann
2022-10-11 22:04 ` Elliot Berman
2022-10-12 6:55 ` Greg Kroah-Hartman
2022-10-13 20:54 ` Elliot Berman
2022-10-14 7:38 ` Greg Kroah-Hartman
2022-10-11 18:22 ` Elliot Berman
2022-10-11 22:04 ` Elliot Berman
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