From: Ben Widawsky <ben.widawsky@intel.com> To: linux-cxl@vger.kernel.org Cc: Ben Widawsky <ben.widawsky@intel.com>, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>, Chris Browy <cbrowy@avery-design.com>, Christoph Hellwig <hch@infradead.org>, Jon Masters <jcm@jonmasters.org>, Jonathan Cameron <Jonathan.Cameron@Huawei.com>, Rafael Wysocki <rafael.j.wysocki@intel.com>, Randy Dunlap <rdunlap@infradead.org>, daniel.lll@alibaba-inc.com, "John Groves (jgroves)" <jgroves@micron.com>, "Kelley, Sean V" <sean.v.kelley@intel.com> Subject: [PATCH 13/14] cxl/mem: Add limited Get Log command (0401h) Date: Fri, 29 Jan 2021 16:24:37 -0800 [thread overview] Message-ID: <20210130002438.1872527-14-ben.widawsky@intel.com> (raw) In-Reply-To: <20210130002438.1872527-1-ben.widawsky@intel.com> The Get Log command returns the actual log entries that are advertised via the Get Supported Logs command (0400h). CXL device logs are selected by UUID which is part of the CXL spec. Because the driver tries to sanitize what is sent to hardware, there becomes a need to restrict the types of logs which can be accessed by userspace. For example, the vendor specific log might only be consumable by proprietary, or offline applications, and therefore a good candidate for userspace. The current driver infrastructure does allow basic validation for all commands, but doesn't inspect any of the payload data. Along with Get Log support comes new infrastructure to add a hook for payload validation. This infrastructure is used to filter out the CEL UUID, which the userspace driver doesn't have business knowing, and taints on invalid UUIDs being sent to hardware. Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> --- drivers/cxl/mem.c | 42 +++++++++++++++++++++++++++++++++++- include/uapi/linux/cxl_mem.h | 1 + 2 files changed, 42 insertions(+), 1 deletion(-) diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c index b8ca6dff37b5..086268f1dd6c 100644 --- a/drivers/cxl/mem.c +++ b/drivers/cxl/mem.c @@ -119,6 +119,8 @@ static const uuid_t log_uuid[] = { 0x07, 0x19, 0x40, 0x3d, 0x86) }; +static int validate_log_uuid(void __user *payload, size_t size); + /** * struct cxl_mem_command - Driver representation of a memory device command * @info: Command information as it exists for the UAPI @@ -132,6 +134,10 @@ static const uuid_t log_uuid[] = { * * %CXL_CMD_INTERNAL_FLAG_PSEUDO: This is a pseudo command which doesn't have * a direct mapping to hardware. They are implicitly always enabled. * + * @validate_payload: A function called after the command is validated but + * before it's sent to the hardware. The primary purpose is to validate, or + * fixup the actual payload. + * * The cxl_mem_command is the driver's internal representation of commands that * are supported by the driver. Some of these commands may not be supported by * the hardware. The driver will use @info to validate the fields passed in by @@ -147,9 +153,11 @@ struct cxl_mem_command { #define CXL_CMD_INTERNAL_FLAG_HIDDEN BIT(0) #define CXL_CMD_INTERNAL_FLAG_MANDATORY BIT(1) #define CXL_CMD_INTERNAL_FLAG_PSEUDO BIT(2) + + int (*validate_payload)(void __user *payload, size_t size); }; -#define CXL_CMD(_id, _flags, sin, sout, f) \ +#define CXL_CMD_VALIDATE(_id, _flags, sin, sout, f, v) \ [CXL_MEM_COMMAND_ID_##_id] = { \ .info = { \ .id = CXL_MEM_COMMAND_ID_##_id, \ @@ -159,8 +167,12 @@ struct cxl_mem_command { }, \ .flags = CXL_CMD_INTERNAL_FLAG_##f, \ .opcode = CXL_MBOX_OP_##_id, \ + .validate_payload = v, \ } +#define CXL_CMD(_id, _flags, sin, sout, f) \ + CXL_CMD_VALIDATE(_id, _flags, sin, sout, f, NULL) + /* * This table defines the supported mailbox commands for the driver. This table * is made up of a UAPI structure. Non-negative values as parameters in the @@ -176,6 +188,8 @@ static struct cxl_mem_command mem_commands[] = { CXL_CMD(GET_PARTITION_INFO, NONE, 0, 0x20, NONE), CXL_CMD(GET_LSA, NONE, 0x8, ~0, MANDATORY), CXL_CMD(GET_HEALTH_INFO, NONE, 0, 0x12, MANDATORY), + CXL_CMD_VALIDATE(GET_LOG, MUTEX, 0x18, ~0, MANDATORY, + validate_log_uuid), }; /* @@ -563,6 +577,13 @@ static int handle_mailbox_cmd_from_user(struct cxl_memdev *cxlmd, kvzalloc(cxlm->mbox.payload_size, GFP_KERNEL); if (cmd->info.size_in) { + if (cmd->validate_payload) { + rc = cmd->validate_payload(u64_to_user_ptr(in_payload), + cmd->info.size_in); + if (rc) + goto out; + } + mbox_cmd.payload_in = kvzalloc(cmd->info.size_in, GFP_KERNEL); if (!mbox_cmd.payload_in) { rc = -ENOMEM; @@ -1205,6 +1226,25 @@ struct cxl_mbox_get_log { __le32 length; } __packed; +static int validate_log_uuid(void __user *input, size_t size) +{ + struct cxl_mbox_get_log __user *get_log = input; + uuid_t payload_uuid; + + if (copy_from_user(&payload_uuid, &get_log->uuid, sizeof(uuid_t))) + return -EFAULT; + + /* All unspec'd logs shall taint */ + if (uuid_equal(&payload_uuid, &log_uuid[CEL_UUID])) + return 0; + if (uuid_equal(&payload_uuid, &log_uuid[DEBUG_UUID])) + return 0; + + add_taint(TAINT_RAW_PASSTHROUGH, LOCKDEP_STILL_OK); + + return 0; +} + static int cxl_xfer_log(struct cxl_mem *cxlm, uuid_t *uuid, u32 size, u8 *out) { u32 remaining = size; diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 766c231d6150..7cdc7f7ce7ec 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -39,6 +39,7 @@ extern "C" { ___C(GET_PARTITION_INFO, "Get Partition Information"), \ ___C(GET_LSA, "Get Label Storage Area"), \ ___C(GET_HEALTH_INFO, "Get Health Info"), \ + ___C(GET_LOG, "Get Log"), \ ___C(MAX, "Last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a -- 2.30.0 _______________________________________________ Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org To unsubscribe send an email to linux-nvdimm-leave@lists.01.org
WARNING: multiple messages have this Message-ID (diff)
From: Ben Widawsky <ben.widawsky@intel.com> To: linux-cxl@vger.kernel.org Cc: Ben Widawsky <ben.widawsky@intel.com>, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>, Chris Browy <cbrowy@avery-design.com>, Christoph Hellwig <hch@infradead.org>, Dan Williams <dan.j.williams@intel.com>, Ira Weiny <ira.weiny@intel.com>, Jon Masters <jcm@jonmasters.org>, Jonathan Cameron <Jonathan.Cameron@Huawei.com>, Rafael Wysocki <rafael.j.wysocki@intel.com>, Randy Dunlap <rdunlap@infradead.org>, Vishal Verma <vishal.l.verma@intel.com>, daniel.lll@alibaba-inc.com, "John Groves (jgroves)" <jgroves@micron.com>, "Kelley, Sean V" <sean.v.kelley@intel.com> Subject: [PATCH 13/14] cxl/mem: Add limited Get Log command (0401h) Date: Fri, 29 Jan 2021 16:24:37 -0800 [thread overview] Message-ID: <20210130002438.1872527-14-ben.widawsky@intel.com> (raw) In-Reply-To: <20210130002438.1872527-1-ben.widawsky@intel.com> The Get Log command returns the actual log entries that are advertised via the Get Supported Logs command (0400h). CXL device logs are selected by UUID which is part of the CXL spec. Because the driver tries to sanitize what is sent to hardware, there becomes a need to restrict the types of logs which can be accessed by userspace. For example, the vendor specific log might only be consumable by proprietary, or offline applications, and therefore a good candidate for userspace. The current driver infrastructure does allow basic validation for all commands, but doesn't inspect any of the payload data. Along with Get Log support comes new infrastructure to add a hook for payload validation. This infrastructure is used to filter out the CEL UUID, which the userspace driver doesn't have business knowing, and taints on invalid UUIDs being sent to hardware. Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> --- drivers/cxl/mem.c | 42 +++++++++++++++++++++++++++++++++++- include/uapi/linux/cxl_mem.h | 1 + 2 files changed, 42 insertions(+), 1 deletion(-) diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c index b8ca6dff37b5..086268f1dd6c 100644 --- a/drivers/cxl/mem.c +++ b/drivers/cxl/mem.c @@ -119,6 +119,8 @@ static const uuid_t log_uuid[] = { 0x07, 0x19, 0x40, 0x3d, 0x86) }; +static int validate_log_uuid(void __user *payload, size_t size); + /** * struct cxl_mem_command - Driver representation of a memory device command * @info: Command information as it exists for the UAPI @@ -132,6 +134,10 @@ static const uuid_t log_uuid[] = { * * %CXL_CMD_INTERNAL_FLAG_PSEUDO: This is a pseudo command which doesn't have * a direct mapping to hardware. They are implicitly always enabled. * + * @validate_payload: A function called after the command is validated but + * before it's sent to the hardware. The primary purpose is to validate, or + * fixup the actual payload. + * * The cxl_mem_command is the driver's internal representation of commands that * are supported by the driver. Some of these commands may not be supported by * the hardware. The driver will use @info to validate the fields passed in by @@ -147,9 +153,11 @@ struct cxl_mem_command { #define CXL_CMD_INTERNAL_FLAG_HIDDEN BIT(0) #define CXL_CMD_INTERNAL_FLAG_MANDATORY BIT(1) #define CXL_CMD_INTERNAL_FLAG_PSEUDO BIT(2) + + int (*validate_payload)(void __user *payload, size_t size); }; -#define CXL_CMD(_id, _flags, sin, sout, f) \ +#define CXL_CMD_VALIDATE(_id, _flags, sin, sout, f, v) \ [CXL_MEM_COMMAND_ID_##_id] = { \ .info = { \ .id = CXL_MEM_COMMAND_ID_##_id, \ @@ -159,8 +167,12 @@ struct cxl_mem_command { }, \ .flags = CXL_CMD_INTERNAL_FLAG_##f, \ .opcode = CXL_MBOX_OP_##_id, \ + .validate_payload = v, \ } +#define CXL_CMD(_id, _flags, sin, sout, f) \ + CXL_CMD_VALIDATE(_id, _flags, sin, sout, f, NULL) + /* * This table defines the supported mailbox commands for the driver. This table * is made up of a UAPI structure. Non-negative values as parameters in the @@ -176,6 +188,8 @@ static struct cxl_mem_command mem_commands[] = { CXL_CMD(GET_PARTITION_INFO, NONE, 0, 0x20, NONE), CXL_CMD(GET_LSA, NONE, 0x8, ~0, MANDATORY), CXL_CMD(GET_HEALTH_INFO, NONE, 0, 0x12, MANDATORY), + CXL_CMD_VALIDATE(GET_LOG, MUTEX, 0x18, ~0, MANDATORY, + validate_log_uuid), }; /* @@ -563,6 +577,13 @@ static int handle_mailbox_cmd_from_user(struct cxl_memdev *cxlmd, kvzalloc(cxlm->mbox.payload_size, GFP_KERNEL); if (cmd->info.size_in) { + if (cmd->validate_payload) { + rc = cmd->validate_payload(u64_to_user_ptr(in_payload), + cmd->info.size_in); + if (rc) + goto out; + } + mbox_cmd.payload_in = kvzalloc(cmd->info.size_in, GFP_KERNEL); if (!mbox_cmd.payload_in) { rc = -ENOMEM; @@ -1205,6 +1226,25 @@ struct cxl_mbox_get_log { __le32 length; } __packed; +static int validate_log_uuid(void __user *input, size_t size) +{ + struct cxl_mbox_get_log __user *get_log = input; + uuid_t payload_uuid; + + if (copy_from_user(&payload_uuid, &get_log->uuid, sizeof(uuid_t))) + return -EFAULT; + + /* All unspec'd logs shall taint */ + if (uuid_equal(&payload_uuid, &log_uuid[CEL_UUID])) + return 0; + if (uuid_equal(&payload_uuid, &log_uuid[DEBUG_UUID])) + return 0; + + add_taint(TAINT_RAW_PASSTHROUGH, LOCKDEP_STILL_OK); + + return 0; +} + static int cxl_xfer_log(struct cxl_mem *cxlm, uuid_t *uuid, u32 size, u8 *out) { u32 remaining = size; diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 766c231d6150..7cdc7f7ce7ec 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -39,6 +39,7 @@ extern "C" { ___C(GET_PARTITION_INFO, "Get Partition Information"), \ ___C(GET_LSA, "Get Label Storage Area"), \ ___C(GET_HEALTH_INFO, "Get Health Info"), \ + ___C(GET_LOG, "Get Log"), \ ___C(MAX, "Last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a -- 2.30.0
next prev parent reply other threads:[~2021-01-30 0:25 UTC|newest] Thread overview: 193+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-30 0:24 [PATCH 00/14] CXL 2.0 Support Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 01/14] cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 23:51 ` David Rientjes 2021-01-30 23:51 ` David Rientjes 2021-02-01 17:21 ` Jonathan Cameron 2021-02-01 17:21 ` Jonathan Cameron 2021-02-01 17:34 ` Konrad Rzeszutek Wilk 2021-02-01 17:34 ` Konrad Rzeszutek Wilk 2021-02-02 17:58 ` Christoph Hellwig 2021-02-02 17:58 ` Christoph Hellwig 2021-02-02 18:00 ` Christoph Hellwig 2021-02-02 18:00 ` Christoph Hellwig 2021-01-30 0:24 ` [PATCH 02/14] cxl/mem: Map memory device registers Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 23:51 ` David Rientjes 2021-01-30 23:51 ` David Rientjes 2021-02-01 16:46 ` Ben Widawsky 2021-02-01 16:46 ` Ben Widawsky 2021-02-01 18:19 ` Jonathan Cameron 2021-02-01 18:19 ` Jonathan Cameron 2021-02-01 17:36 ` Konrad Rzeszutek Wilk 2021-02-01 17:36 ` Konrad Rzeszutek Wilk 2021-02-02 18:04 ` Christoph Hellwig 2021-02-02 18:04 ` Christoph Hellwig 2021-02-02 18:31 ` Ben Widawsky 2021-02-02 18:31 ` Ben Widawsky 2021-02-03 17:12 ` Christoph Hellwig 2021-02-03 17:12 ` Christoph Hellwig 2021-01-30 0:24 ` [PATCH 03/14] cxl/mem: Find device capabilities Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 23:51 ` David Rientjes 2021-01-30 23:51 ` David Rientjes 2021-02-01 16:53 ` Ben Widawsky 2021-02-01 16:53 ` Ben Widawsky 2021-02-01 21:51 ` David Rientjes 2021-02-01 21:51 ` David Rientjes 2021-02-01 21:58 ` Ben Widawsky 2021-02-01 21:58 ` Ben Widawsky 2021-02-01 22:23 ` David Rientjes 2021-02-01 22:23 ` David Rientjes 2021-02-01 22:28 ` Ben Widawsky 2021-02-01 22:28 ` Ben Widawsky 2021-02-01 22:33 ` Ben Widawsky 2021-02-01 22:33 ` Ben Widawsky 2021-02-01 22:45 ` David Rientjes 2021-02-01 22:45 ` David Rientjes 2021-02-01 22:50 ` Ben Widawsky 2021-02-01 22:50 ` Ben Widawsky 2021-02-01 23:09 ` David Rientjes 2021-02-01 23:09 ` David Rientjes 2021-02-01 23:17 ` Ben Widawsky 2021-02-01 23:17 ` Ben Widawsky 2021-02-01 23:58 ` David Rientjes 2021-02-01 23:58 ` David Rientjes 2021-02-02 0:11 ` Ben Widawsky 2021-02-02 0:11 ` Ben Widawsky 2021-02-02 0:14 ` Dan Williams 2021-02-02 0:14 ` Dan Williams 2021-02-02 1:09 ` David Rientjes 2021-02-02 1:09 ` David Rientjes 2021-02-01 22:02 ` Dan Williams 2021-02-01 22:02 ` Dan Williams 2021-02-01 17:41 ` Konrad Rzeszutek Wilk 2021-02-01 17:41 ` Konrad Rzeszutek Wilk 2021-02-01 17:50 ` Ben Widawsky 2021-02-01 17:50 ` Ben Widawsky 2021-02-01 18:08 ` Konrad Rzeszutek Wilk 2021-02-01 18:08 ` Konrad Rzeszutek Wilk 2021-02-02 18:10 ` Christoph Hellwig 2021-02-02 18:10 ` Christoph Hellwig 2021-02-02 18:24 ` Ben Widawsky 2021-02-02 18:24 ` Ben Widawsky 2021-02-03 17:15 ` Christoph Hellwig 2021-02-03 17:15 ` Christoph Hellwig 2021-02-03 17:23 ` Ben Widawsky 2021-02-03 17:23 ` Ben Widawsky 2021-02-03 21:23 ` Dan Williams 2021-02-03 21:23 ` Dan Williams 2021-02-04 7:16 ` Christoph Hellwig 2021-02-04 7:16 ` Christoph Hellwig 2021-02-04 15:29 ` Ben Widawsky 2021-02-04 15:29 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 04/14] cxl/mem: Implement polled mode mailbox Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 23:51 ` David Rientjes 2021-01-30 23:51 ` David Rientjes 2021-02-01 20:00 ` Dan Williams 2021-02-01 20:00 ` Dan Williams 2021-02-02 22:57 ` Ben Widawsky 2021-02-02 22:57 ` Ben Widawsky 2021-02-02 23:54 ` Dan Williams 2021-02-02 23:54 ` Dan Williams 2021-02-03 0:54 ` Ben Widawsky 2021-02-03 0:54 ` Ben Widawsky 2021-02-02 22:50 ` Ben Widawsky 2021-02-02 22:50 ` Ben Widawsky 2021-02-01 17:54 ` Konrad Rzeszutek Wilk 2021-02-01 17:54 ` Konrad Rzeszutek Wilk 2021-02-01 19:13 ` Ben Widawsky 2021-02-01 19:13 ` Ben Widawsky 2021-02-01 19:28 ` Dan Williams 2021-02-01 19:28 ` Dan Williams 2021-02-04 21:53 ` [EXT] " John Groves (jgroves) 2021-02-04 22:24 ` Ben Widawsky 2021-02-04 22:24 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 05/14] cxl/mem: Register CXL memX devices Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 0:31 ` Dan Williams 2021-01-30 0:31 ` Dan Williams 2021-01-30 23:52 ` David Rientjes 2021-01-30 23:52 ` David Rientjes 2021-02-01 17:10 ` Ben Widawsky 2021-02-01 17:10 ` Ben Widawsky 2021-02-01 21:53 ` David Rientjes 2021-02-01 21:53 ` David Rientjes 2021-02-01 21:55 ` Dan Williams 2021-02-01 21:55 ` Dan Williams 2021-02-02 18:13 ` Christoph Hellwig 2021-02-02 18:13 ` Christoph Hellwig 2021-01-30 0:24 ` [PATCH 06/14] cxl/mem: Add basic IOCTL interface Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-02-02 18:15 ` Christoph Hellwig 2021-02-02 18:15 ` Christoph Hellwig 2021-02-02 18:33 ` Ben Widawsky 2021-02-02 18:33 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 07/14] cxl/mem: Add send command Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-02-01 18:15 ` Konrad Rzeszutek Wilk 2021-02-01 18:15 ` Konrad Rzeszutek Wilk 2021-02-02 23:08 ` Ben Widawsky 2021-02-02 23:08 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 08/14] taint: add taint for direct hardware access Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-02-01 18:18 ` Konrad Rzeszutek Wilk 2021-02-01 18:18 ` Konrad Rzeszutek Wilk 2021-02-01 18:34 ` Ben Widawsky 2021-02-01 18:34 ` Ben Widawsky 2021-02-01 19:01 ` Dan Williams 2021-02-01 19:01 ` Dan Williams 2021-02-02 2:49 ` Konrad Rzeszutek Wilk 2021-02-02 2:49 ` Konrad Rzeszutek Wilk 2021-02-02 17:46 ` Dan Williams 2021-02-02 17:46 ` Dan Williams 2021-02-08 22:00 ` Dan Williams 2021-02-08 22:00 ` Dan Williams 2021-02-08 22:09 ` Kees Cook 2021-02-08 22:09 ` Kees Cook 2021-02-08 23:05 ` Ben Widawsky 2021-02-08 23:05 ` Ben Widawsky 2021-02-08 23:36 ` Dan Williams 2021-02-08 23:36 ` Dan Williams 2021-02-09 1:03 ` Dan Williams 2021-02-09 1:03 ` Dan Williams 2021-02-09 3:36 ` Ben Widawsky 2021-02-09 3:36 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 09/14] cxl/mem: Add a "RAW" send command Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-02-01 18:24 ` Konrad Rzeszutek Wilk 2021-02-01 18:24 ` Konrad Rzeszutek Wilk 2021-02-01 19:27 ` Ben Widawsky 2021-02-01 19:27 ` Ben Widawsky 2021-02-01 19:34 ` Konrad Rzeszutek Wilk 2021-02-01 19:34 ` Konrad Rzeszutek Wilk 2021-02-01 21:20 ` Dan Williams 2021-02-01 21:20 ` Dan Williams 2021-01-30 0:24 ` [PATCH 10/14] cxl/mem: Create concept of enabled commands Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 11/14] cxl/mem: Use CEL for enabling commands Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 0:24 ` [PATCH 12/14] cxl/mem: Add set of informational commands Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky [this message] 2021-01-30 0:24 ` [PATCH 13/14] cxl/mem: Add limited Get Log command (0401h) Ben Widawsky 2021-02-01 18:28 ` Konrad Rzeszutek Wilk 2021-02-01 18:28 ` Konrad Rzeszutek Wilk 2021-02-02 23:51 ` Ben Widawsky 2021-02-02 23:51 ` Ben Widawsky 2021-02-02 23:57 ` Dan Williams 2021-02-02 23:57 ` Dan Williams 2021-02-03 17:16 ` Ben Widawsky 2021-02-03 17:16 ` Ben Widawsky 2021-02-03 18:14 ` Konrad Rzeszutek Wilk 2021-02-03 18:14 ` Konrad Rzeszutek Wilk 2021-02-03 20:31 ` Dan Williams 2021-02-03 20:31 ` Dan Williams 2021-02-04 18:55 ` Ben Widawsky 2021-02-04 18:55 ` Ben Widawsky 2021-02-04 21:01 ` Dan Williams 2021-02-04 21:01 ` Dan Williams 2021-01-30 0:24 ` [PATCH 14/14] MAINTAINERS: Add maintainers of the CXL driver Ben Widawsky 2021-01-30 0:24 ` Ben Widawsky
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