From: "Wang, Jian J" <jian.j.wang@intel.com>
To: "Kinney, Michael D" <michael.d.kinney@intel.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: "Gao, Liming" <liming.gao@intel.com>, "Ni, Ray" <ray.ni@intel.com>
Subject: Re: [edk2-devel] [PATCH 04/11] MdePkg/BaseLib: add interface to wrap rdseed IA instruction
Date: Thu, 14 Nov 2019 04:40:56 +0000 [thread overview]
Message-ID: <D827630B58408649ACB04F44C5100036259AFB2F@SHSMSX107.ccr.corp.intel.com> (raw)
In-Reply-To: <E92EE9817A31E24EB0585FDF735412F5B9E1D195@ORSMSX113.amr.corp.intel.com>
Mike,
Thanks for finding it. I'll update the code in v2.
Regards,
Jian
> -----Original Message-----
> From: Kinney, Michael D <michael.d.kinney@intel.com>
> Sent: Thursday, November 14, 2019 12:17 PM
> To: devel@edk2.groups.io; Wang, Jian J <jian.j.wang@intel.com>; Kinney,
> Michael D <michael.d.kinney@intel.com>
> Cc: Gao, Liming <liming.gao@intel.com>; Ni, Ray <ray.ni@intel.com>
> Subject: RE: [edk2-devel] [PATCH 04/11] MdePkg/BaseLib: add interface to wrap
> rdseed IA instruction
>
> Jian,
>
> According to the NASM docuimentation, the rdseed instruction
> has been supported since 2.10.02.
>
> https://www.nasm.us/xdoc/2.10.09/html/nasmdocc.html
>
> Please use rdseed instead of db bytes.
>
> Thanks,
>
> Mike
>
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On
> > Behalf Of Wang, Jian J
> > Sent: Wednesday, November 13, 2019 6:18 PM
> > To: devel@edk2.groups.io
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>;
> > Gao, Liming <liming.gao@intel.com>; Ni, Ray
> > <ray.ni@intel.com>
> > Subject: [edk2-devel] [PATCH 04/11] MdePkg/BaseLib: add
> > interface to wrap rdseed IA instruction
> >
> > BaseRngLib uses rdrand instruction to get random number
> > from DRNG in the processor, which is not a good
> > candidate for seeding openssl rand interface.
> >
> > rdseed in x86 cpu provides non-deterministic random
> > number (NRBG) which meets NIST SP 800-90B and NIST
> > SP800-90C standards and can be used as seed for other
> > software DRNG. This patch adds a C interface
> > AsmRdSeed() to wrap it in BaseLib so that we can add a
> > new RngLib for users to choose in their platform, if
> > their processor support rdseed instruction.
> >
> > Ref:
> > https://bugzilla.tianocore.org/show_bug.cgi?id=1871
> > Cc: Michael D Kinney <michael.d.kinney@intel.com>
> > Cc: Liming Gao <liming.gao@intel.com>
> > Cc: Ray Ni <ray.ni@intel.com>
> > Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
> > ---
> > MdePkg/Include/Library/BaseLib.h | 51
> > +++++++++++++
> > MdePkg/Library/BaseLib/BaseLib.inf | 4 ++
> > MdePkg/Library/BaseLib/BaseLibInternals.h | 46
> > ++++++++++++
> > MdePkg/Library/BaseLib/Ia32/RdSeed.nasm | 87
> > +++++++++++++++++++++++
> > MdePkg/Library/BaseLib/X64/RdSeed.nasm | 80
> > +++++++++++++++++++++
> > MdePkg/Library/BaseLib/X86RdSeed.c | 73
> > +++++++++++++++++++
> > 6 files changed, 341 insertions(+)
> > create mode 100644
> > MdePkg/Library/BaseLib/Ia32/RdSeed.nasm
> > create mode 100644
> > MdePkg/Library/BaseLib/X64/RdSeed.nasm
> > create mode 100644 MdePkg/Library/BaseLib/X86RdSeed.c
> >
> > diff --git a/MdePkg/Include/Library/BaseLib.h
> > b/MdePkg/Include/Library/BaseLib.h
> > index 2a75bc023f..e2f9bf121e 100644
> > --- a/MdePkg/Include/Library/BaseLib.h
> > +++ b/MdePkg/Include/Library/BaseLib.h
> > @@ -7856,6 +7856,57 @@ AsmRdRand64 (
> > OUT UINT64 *Rand
> > );
> >
> > +/**
> > + Generates a 16-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > + **/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed16 (
> > + OUT UINT16 *Seed
> > + );
> > +
> > +/**
> > + Generates a 32-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed32 (
> > + OUT UINT32 *Seed
> > + );
> > +
> > +/**
> > + Generates a 64-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed64 (
> > + OUT UINT64 *Seed
> > + );
> > +
> > /**
> > Load given selector into TR register.
> >
> > diff --git a/MdePkg/Library/BaseLib/BaseLib.inf
> > b/MdePkg/Library/BaseLib/BaseLib.inf
> > index 3586beb0ab..5e12093ba3 100644
> > --- a/MdePkg/Library/BaseLib/BaseLib.inf
> > +++ b/MdePkg/Library/BaseLib/BaseLib.inf
> > @@ -181,6 +181,7 @@
> > Ia32/EnableCache.nasm| GCC
> > Ia32/DisableCache.nasm| GCC
> > Ia32/RdRand.nasm
> > + Ia32/RdSeed.nasm
> >
> > Ia32/DivS64x64Remainder.c
> > Ia32/InternalSwitchStack.c | MSFT
> > @@ -202,6 +203,7 @@
> > X86DisablePaging64.c
> > X86DisablePaging32.c
> > X86RdRand.c
> > + X86RdSeed.c
> > X86PatchInstruction.c
> > X86SpeculationBarrier.c
> >
> > @@ -306,12 +308,14 @@
> > X86DisablePaging64.c
> > X86DisablePaging32.c
> > X86RdRand.c
> > + X86RdSeed.c
> > X86PatchInstruction.c
> > X86SpeculationBarrier.c
> > X64/GccInline.c | GCC
> > X64/EnableDisableInterrupts.nasm
> > X64/DisablePaging64.nasm
> > X64/RdRand.nasm
> > + X64/RdSeed.nasm
> > ChkStkGcc.c | GCC
> >
> > [Sources.EBC]
> > diff --git a/MdePkg/Library/BaseLib/BaseLibInternals.h
> > b/MdePkg/Library/BaseLib/BaseLibInternals.h
> > index 6837d67d90..7b18b192c9 100644
> > --- a/MdePkg/Library/BaseLib/BaseLibInternals.h
> > +++ b/MdePkg/Library/BaseLib/BaseLibInternals.h
> > @@ -862,6 +862,52 @@ InternalX86RdRand64 (
> > OUT UINT64 *Rand
> > );
> >
> > +/**
> > + Generates a 16-bit random seed through RDSEED
> > instruction.
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > + **/
> > +BOOLEAN
> > +EFIAPI
> > +InternalX86RdSeed16 (
> > + OUT UINT16 *Seed
> > + );
> > +
> > +/**
> > + Generates a 32-bit random seed through RDSEED
> > instruction.
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +InternalX86RdSeed32 (
> > + OUT UINT32 *Seed
> > + );
> > +
> > +/**
> > + Generates a 64-bit random seed through RDSEED
> > instruction.
> > +
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +InternalX86RdSeed64 (
> > + OUT UINT64 *Seed
> > + );
> > +
> > #else
> >
> > #endif
> > diff --git a/MdePkg/Library/BaseLib/Ia32/RdSeed.nasm
> > b/MdePkg/Library/BaseLib/Ia32/RdSeed.nasm
> > new file mode 100644
> > index 0000000000..0a4de30db6
> > --- /dev/null
> > +++ b/MdePkg/Library/BaseLib/Ia32/RdSeed.nasm
> > @@ -0,0 +1,87 @@
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +;
> > +; Copyright (c) 2019, Intel Corporation. All rights
> > reserved.<BR> ;
> > +SPDX-License-Identifier: BSD-2-Clause-Patent ; ;
> > Module Name:
> > +;
> > +; RdSeed.nasm
> > +;
> > +; Abstract:
> > +;
> > +; Generates random seed through CPU RdSeed
> > instruction under 32-bit platform.
> > +;
> > +; Notes:
> > +;
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +
> > +SECTION .text
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 16 bit random seed through
> > RDSEED instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed16 (UINT16 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed16)
> > +ASM_PFX(InternalX86RdSeed16):
> > + ; rdseed ax ; generate a 16 bit
> > RN into ax
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0xf, 0xc7, 0xf8 ; rdseed r16: "0f
> > c7 /7 ModRM:r/m(w)"
> > + jc rn16_ok ; jmp if CF=1
> > + xor eax, eax ; reg=0 if CF=0
> > + pause
> > + ret ; return with
> > failure status
> > +rn16_ok:
> > + mov edx, dword [esp + 4]
> > + mov [edx], ax
> > + mov eax, 1
> > + ret
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 32 bit random seed through
> > RDSEED instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed32 (UINT32 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed32)
> > +ASM_PFX(InternalX86RdSeed32):
> > + ; rdseed eax ; generate a 32 bit
> > RN into eax
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0xf, 0xc7, 0xf8 ; rdseed r32: "0f
> > c7 /7 ModRM:r/m(w)"
> > + jc rn32_ok ; jmp if CF=1
> > + xor eax, eax ; reg=0 if CF=0
> > + pause
> > + ret ; return with
> > failure status
> > +rn32_ok:
> > + mov edx, dword [esp + 4]
> > + mov [edx], eax
> > + mov eax, 1
> > + ret
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 64 bit random seed through
> > RDSEED instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed64 (UINT64 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed64)
> > +ASM_PFX(InternalX86RdSeed64):
> > + ; rdseed eax ; generate a 32 bit
> > RN into eax
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0xf, 0xc7, 0xf8 ; rdseed r32: "0f
> > c7 /7 ModRM:r/m(w)"
> > + jnc rn64_ret ; jmp if CF=0
> > + mov edx, dword [esp + 4]
> > + mov [edx], eax
> > +
> > + db 0xf, 0xc7, 0xf0 ; generate another
> > 32 bit RN
> > + jnc rn64_ret ; jmp if CF=0
> > + mov [edx + 4], eax
> > +
> > + mov eax, 1
> > + ret
> > +rn64_ret:
> > + xor eax, eax
> > + pause
> > + ret ; return with
> > failure status
> > +
> > diff --git a/MdePkg/Library/BaseLib/X64/RdSeed.nasm
> > b/MdePkg/Library/BaseLib/X64/RdSeed.nasm
> > new file mode 100644
> > index 0000000000..a60acfeace
> > --- /dev/null
> > +++ b/MdePkg/Library/BaseLib/X64/RdSeed.nasm
> > @@ -0,0 +1,80 @@
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +;
> > +; Copyright (c) 2019, Intel Corporation. All rights
> > reserved.<BR> ;
> > +SPDX-License-Identifier: BSD-2-Clause-Patent ; ;
> > Module Name:
> > +;
> > +; RdSeed.nasm
> > +;
> > +; Abstract:
> > +;
> > +; Generates random seed through CPU RdSeed
> > instruction under 64-bit platform.
> > +;
> > +; Notes:
> > +;
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +
> > + DEFAULT REL
> > + SECTION .text
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 16 bit random seed through
> > RDSEED instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed16 (UINT16 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed16)
> > +ASM_PFX(InternalX86RdSeed16):
> > + ; rdseed ax ; generate a 16 bit
> > RN into eax,
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0xf, 0xc7, 0xf8 ; rdseed r16: "0f
> > c7 /7 ModRM:r/m(w)"
> > + jc rn16_ok ; jmp if CF=1
> > + xor rax, rax ; reg=0 if CF=0
> > + pause
> > + ret ; return with
> > failure status
> > +rn16_ok:
> > + mov [rcx], ax
> > + mov rax, 1
> > + ret
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 32 bit random seed through
> > RDSEED instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed32 (UINT32 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed32)
> > +ASM_PFX(InternalX86RdSeed32):
> > + ; rdseed eax ; generate a 32 bit
> > RN into eax,
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0xf, 0xc7, 0xf8 ; rdseed r32: "0f
> > c7 /7 ModRM:r/m(w)"
> > + jc rn32_ok ; jmp if CF=1
> > + xor rax, rax ; reg=0 if CF=0
> > + pause
> > + ret ; return with
> > failure status
> > +rn32_ok:
> > + mov [rcx], eax
> > + mov rax, 1
> > + ret
> > +
> > +;-----------------------------------------------------
> > -----------------
> > +-------- ; Generates a 64 bit random seed through one
> > RDSEED
> > +instruction.
> > +; Return TRUE if Seed generated successfully, or
> > FALSE if not.
> > +;
> > +; BOOLEAN EFIAPI InternalX86RdSeed64 (UINT64 *Seed);
> > +;-----------------------------------------------------
> > -----------------
> > +--------
> > +global ASM_PFX(InternalX86RdSeed64)
> > +ASM_PFX(InternalX86RdSeed64):
> > + ; rdseed rax ; generate a 64 bit
> > RN into rax,
> > + ; CF=1 if RN
> > generated ok, otherwise CF=0
> > + db 0x48, 0xf, 0xc7, 0xf8 ; rdseed r64:
> > "REX.W + 0f c7 /7 ModRM:r/m(w)"
> > + jc rn64_ok ; jmp if CF=1
> > + xor rax, rax ; reg=0 if CF=0
> > + pause
> > + ret ; return with
> > failure status
> > +rn64_ok:
> > + mov [rcx], rax
> > + mov rax, 1
> > + ret
> > +
> > diff --git a/MdePkg/Library/BaseLib/X86RdSeed.c
> > b/MdePkg/Library/BaseLib/X86RdSeed.c
> > new file mode 100644
> > index 0000000000..9fa7948ff1
> > --- /dev/null
> > +++ b/MdePkg/Library/BaseLib/X86RdSeed.c
> > @@ -0,0 +1,73 @@
> > +/** @file
> > + IA-32/x64 AsmRdSeedxx()
> > + Generates random seed through CPU RdSeed
> > instruction.
> > +
> > + Copyright (c) 2019, Intel Corporation. All rights
> > reserved.<BR>
> > + SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#include "BaseLibInternals.h"
> > +
> > +/**
> > + Generates a 16-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > + **/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed16 (
> > + OUT UINT16 *Seed
> > + )
> > +{
> > + ASSERT (Seed != NULL);
> > + return InternalX86RdSeed16 (Seed);
> > +}
> > +
> > +/**
> > + Generates a 32-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed32 (
> > + OUT UINT32 *Seed
> > + )
> > +{
> > + ASSERT (Seed != NULL);
> > + return InternalX86RdSeed32 (Seed);
> > +}
> > +
> > +/**
> > + Generates a 64-bit random seed through RDSEED
> > instruction.
> > +
> > + if Seed is NULL, then ASSERT().
> > +
> > + @param[out] Seed Buffer pointer to store the
> > seed data.
> > +
> > + @retval TRUE RDSEED call was successful.
> > + @retval FALSE Failed attempts to call
> > RDSEED.
> > +
> > +**/
> > +BOOLEAN
> > +EFIAPI
> > +AsmRdSeed64 (
> > + OUT UINT64 *Seed
> > + )
> > +{
> > + ASSERT (Seed != NULL);
> > + return InternalX86RdSeed64 (Seed);
> > +}
> > --
> > 2.17.1.windows.2
> >
> >
> >
next prev parent reply other threads:[~2019-11-14 4:41 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-14 2:17 [PATCH 00/11] Use proper entropy sources Wang, Jian J
2019-11-14 2:17 ` [PATCH 01/11] NetworkPkg/NetworkPkg.dsc: specify RngLib instance for build Wang, Jian J
2019-11-14 2:17 ` [PATCH 02/11] SignedCapsulePkg/SignedCapsulePkg.dsc: specify RngLib instances Wang, Jian J
2019-11-14 2:17 ` [PATCH 03/11] FmpDevicePkg/FmpDevicePkg.dsc: specify RngLib instances in dsc files Wang, Jian J
2019-11-14 2:17 ` [PATCH 04/11] MdePkg/BaseLib: add interface to wrap rdseed IA instruction Wang, Jian J
2019-11-14 4:17 ` [edk2-devel] " Michael D Kinney
2019-11-14 4:40 ` Wang, Jian J [this message]
2019-11-14 2:17 ` [PATCH 05/11] SecurityPkg/RngLibRdSeed: add an instance of RngLib to make use rdseed Wang, Jian J
2019-11-14 4:24 ` [edk2-devel] " Michael D Kinney
2019-11-14 4:38 ` Wang, Jian J
2019-11-15 13:28 ` Ard Biesheuvel
2019-11-15 17:21 ` Michael D Kinney
2019-11-15 17:35 ` Ard Biesheuvel
2019-11-16 2:17 ` Wang, Jian J
2019-11-15 22:19 ` Laszlo Ersek
2019-11-14 2:17 ` [PATCH 06/11] SecurityPkg/DxeRngLibRngProtocol: add RNG protocol version of RngLib Wang, Jian J
2019-11-14 11:15 ` [edk2-devel] " Laszlo Ersek
2019-11-14 14:52 ` Wang, Jian J
2019-11-14 2:17 ` [PATCH 07/11] SecurityPkg/SecurityPkg.dsc: add new RngLib instances for build Wang, Jian J
2019-11-14 2:17 ` [PATCH 08/11] OvmfPkg: specify RngLib instances in dsc files Wang, Jian J
2019-11-14 11:07 ` [edk2-devel] " Laszlo Ersek
2019-11-14 14:40 ` Wang, Jian J
2019-11-14 14:51 ` Laszlo Ersek
2019-11-14 14:55 ` Wang, Jian J
2019-11-14 2:17 ` [PATCH 09/11] ArmVirtPkg/ArmVirt.dsc.inc: " Wang, Jian J
2019-11-14 7:41 ` [edk2-devel] " Ard Biesheuvel
2019-11-14 8:03 ` Wang, Jian J
2019-11-14 8:14 ` Ard Biesheuvel
2019-11-14 8:31 ` Wang, Jian J
2019-11-14 10:36 ` Laszlo Ersek
2019-11-14 14:26 ` Wang, Jian J
2019-11-14 2:17 ` [PATCH 10/11] CryptoPkg/OpensslLib: use RngLib to get high quality random entropy Wang, Jian J
2019-11-14 7:42 ` Ard Biesheuvel
2019-11-14 2:17 ` [PATCH 11/11] FmpDevicePkg/FmpDevicePkg.dsc: remove TimerLib instance Wang, Jian J
2019-11-14 4:21 ` [edk2-devel] [PATCH 00/11] Use proper entropy sources Michael D Kinney
2019-11-14 5:15 ` Wang, Jian J
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