From: Kai Huang <kai.huang@intel.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: dave.hansen@intel.com, seanjc@google.com, pbonzini@redhat.com,
kirill.shutemov@linux.intel.com,
sathyanarayanan.kuppuswamy@linux.intel.com, peterz@infradead.org,
tony.luck@intel.com, ak@linux.intel.com,
dan.j.williams@intel.com, isaku.yamahata@intel.com,
kai.huang@intel.com
Subject: [PATCH v2 07/21] x86/virt/tdx: Do TDX module global initialization
Date: Sun, 13 Mar 2022 23:49:47 +1300 [thread overview]
Message-ID: <35c2921238bab117fea6ce6feb8604e83750ac39.1647167475.git.kai.huang@intel.com> (raw)
In-Reply-To: <cover.1647167475.git.kai.huang@intel.com>
Do the TDX module global initialization which requires calling
TDH.SYS.INIT once on any logical cpu.
Signed-off-by: Kai Huang <kai.huang@intel.com>
---
arch/x86/virt/vmx/tdx.c | 11 ++++++++++-
arch/x86/virt/vmx/tdx.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/x86/virt/vmx/tdx.c b/arch/x86/virt/vmx/tdx.c
index d87af534db51..45e7404b5d81 100644
--- a/arch/x86/virt/vmx/tdx.c
+++ b/arch/x86/virt/vmx/tdx.c
@@ -463,11 +463,20 @@ static int __tdx_detect(void)
static int init_tdx_module(void)
{
+ int ret;
+
+ /* TDX module global initialization */
+ ret = seamcall(TDH_SYS_INIT, 0, 0, 0, 0, NULL, NULL);
+ if (ret)
+ goto out;
+
/*
* Return -EFAULT until all steps of TDX module
* initialization are done.
*/
- return -EFAULT;
+ ret = -EFAULT;
+out:
+ return ret;
}
static void shutdown_tdx_module(void)
diff --git a/arch/x86/virt/vmx/tdx.h b/arch/x86/virt/vmx/tdx.h
index dcc1f6dfe378..f0983b1936d8 100644
--- a/arch/x86/virt/vmx/tdx.h
+++ b/arch/x86/virt/vmx/tdx.h
@@ -38,6 +38,7 @@ struct p_seamldr_info {
/*
* TDX module SEAMCALL leaf functions
*/
+#define TDH_SYS_INIT 33
#define TDH_SYS_LP_SHUTDOWN 44
struct tdx_module_output;
--
2.35.1
next prev parent reply other threads:[~2022-03-13 10:51 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-13 10:49 [PATCH v2 00/21] TDX host kernel support Kai Huang
2022-03-13 10:49 ` [PATCH v2 01/21] x86/virt/tdx: Detect SEAM Kai Huang
2022-03-23 3:21 ` Tian, Kevin
2022-03-28 3:55 ` Kai Huang
2022-03-28 8:10 ` Tian, Kevin
2022-03-29 17:52 ` Isaku Yamahata
2022-03-29 23:28 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 02/21] x86/virt/tdx: Detect TDX private KeyIDs Kai Huang
2022-03-13 10:49 ` [PATCH v2 03/21] x86/virt/tdx: Implement the SEAMCALL base function Kai Huang
2022-03-23 3:35 ` Tian, Kevin
2022-03-28 1:41 ` Kai Huang
2022-03-28 8:16 ` Tian, Kevin
2022-03-28 9:10 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 04/21] x86/virt/tdx: Add skeleton for detecting and initializing TDX on demand Kai Huang
2022-03-23 6:49 ` Tian, Kevin
2022-03-28 1:57 ` Kai Huang
2022-03-28 8:26 ` Tian, Kevin
2022-03-28 9:24 ` Kai Huang
2022-03-28 11:47 ` Tian, Kevin
2022-03-28 22:55 ` Kai Huang
2022-03-29 2:36 ` Tian, Kevin
2022-03-29 3:10 ` Kai Huang
2022-03-29 3:17 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 05/21] x86/virt/tdx: Detect P-SEAMLDR and TDX module Kai Huang
2022-03-13 10:49 ` [PATCH v2 06/21] x86/virt/tdx: Shut down TDX module in case of error Kai Huang
2022-03-13 10:49 ` Kai Huang [this message]
2022-03-13 10:49 ` [PATCH v2 08/21] x86/virt/tdx: Do logical-cpu scope TDX module initialization Kai Huang
2022-03-13 10:49 ` [PATCH v2 09/21] x86/virt/tdx: Get information about TDX module and convertible memory Kai Huang
2022-03-24 17:43 ` Isaku Yamahata
2022-03-28 1:30 ` Kai Huang
2022-03-28 20:22 ` Isaku Yamahata
2022-03-28 20:30 ` Dave Hansen
2022-03-28 23:40 ` Kai Huang
2022-03-28 23:44 ` Dave Hansen
2022-03-29 0:04 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 10/21] x86/virt/tdx: Add placeholder to coveret all system RAM as TDX memory Kai Huang
2022-03-13 10:49 ` [PATCH v2 11/21] x86/virt/tdx: Choose to use " Kai Huang
2022-03-13 10:49 ` [PATCH v2 12/21] x86/virt/tdx: Create TDMRs to cover all system RAM Kai Huang
2022-03-13 10:49 ` [PATCH v2 13/21] x86/virt/tdx: Allocate and set up PAMTs for TDMRs Kai Huang
2022-03-24 18:06 ` Isaku Yamahata
2022-03-28 1:16 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 14/21] x86/virt/tdx: Set up reserved areas for all TDMRs Kai Huang
2022-03-13 10:49 ` [PATCH v2 15/21] x86/virt/tdx: Reserve TDX module global KeyID Kai Huang
2022-03-13 10:49 ` [PATCH v2 16/21] x86/virt/tdx: Configure TDX module with TDMRs and " Kai Huang
2022-03-13 10:49 ` [PATCH v2 17/21] x86/virt/tdx: Configure global KeyID on all packages Kai Huang
2022-03-24 18:18 ` isaku.yamahata
2022-03-28 1:19 ` Kai Huang
2022-03-13 10:49 ` [PATCH v2 18/21] x86/virt/tdx: Initialize all TDMRs Kai Huang
2022-03-13 10:49 ` [PATCH v2 19/21] x86: Flush cache of TDX private memory during kexec() Kai Huang
2022-03-13 10:50 ` [PATCH v2 20/21] x86/virt/tdx: Add kernel command line to opt-in TDX host support Kai Huang
2022-03-13 10:50 ` [PATCH v2 21/21] Documentation/x86: Add documentation for " Kai Huang
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