Re: [PATCH v7 12/12] xen/changelog: Add SVE and "dom0" options to the changelog for Arm
Hi, On 23/05/2023 08:43, Luca Fancellu wrote: Arm now can use the "dom0=" Xen command line option and the support for guests running SVE instructions is added, put entries in the changelog. Mention the "Tech Preview" status and add an entry in SUPPORT.md Signed-off-by: Luca Fancellu Acked-by: Henry Wang # CHANGELOG --- Changes from v6: - Add Henry's A-by to CHANGELOG Changes from v5: - Add Tech Preview status and add entry in SUPPORT.md (Bertrand) Changes from v4: - No changes Change from v3: - new patch --- CHANGELOG.md | 3 +++ SUPPORT.md | 6 ++ 2 files changed, 9 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 5bfd3aa5c0d5..512b7bdc0fcb 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -11,6 +11,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) cap toolstack provided values. - Ignore VCPUOP_set_singleshot_timer's VCPU_SSHOTTMR_future flag. The only known user doesn't use it properly, leading to in-guest breakage. + - The "dom0" option is now supported on Arm and "sve=" sub-option can be used + to enable dom0 guest to use SVE/SVE2 instructions. ### Added - On x86, support for features new in Intel Sapphire Rapids CPUs: @@ -20,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) - Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system wide impact of a guest misusing atomic instructions. - xl/libxl can customize SMBIOS strings for HVM guests. + - On Arm, Xen supports guests running SVE/SVE2 instructions. (Tech Preview) ## [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) - 2022-12-12 diff --git a/SUPPORT.md b/SUPPORT.md index 6dbed9d5d029..e0fa2246807b 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -99,6 +99,12 @@ Extension to the GICv3 interrupt controller to support MSI. Status: Experimental +### ARM Scalable Vector Extension (SVE/SVE2) + +AArch64 guest can use Scalable Vector Extension (SVE/SVE2). I think we should cover dom0 here as well. So s/guest/domain/. Also, we don't use AArch64 in SUPPORT.MD so far. So please use ARM64/arm64. At some point we will need to do some renaming for consistency. Cheers, -- Julien Grall
Re: [PATCH v7 12/12] xen/changelog: Add SVE and "dom0" options to the changelog for Arm
Hi Luca, > On 23 May 2023, at 09:43, Luca Fancellu wrote: > > Arm now can use the "dom0=" Xen command line option and the support > for guests running SVE instructions is added, put entries in the > changelog. > > Mention the "Tech Preview" status and add an entry in SUPPORT.md > > Signed-off-by: Luca Fancellu > Acked-by: Henry Wang # CHANGELOG Reviewed-by: Bertrand Marquis Cheers Bertrand > --- > Changes from v6: > - Add Henry's A-by to CHANGELOG > Changes from v5: > - Add Tech Preview status and add entry in SUPPORT.md (Bertrand) > Changes from v4: > - No changes > Change from v3: > - new patch > --- > CHANGELOG.md | 3 +++ > SUPPORT.md | 6 ++ > 2 files changed, 9 insertions(+) > > diff --git a/CHANGELOG.md b/CHANGELOG.md > index 5bfd3aa5c0d5..512b7bdc0fcb 100644 > --- a/CHANGELOG.md > +++ b/CHANGELOG.md > @@ -11,6 +11,8 @@ The format is based on [Keep a > Changelog](https://keepachangelog.com/en/1.0.0/) >cap toolstack provided values. > - Ignore VCPUOP_set_singleshot_timer's VCPU_SSHOTTMR_future flag. The only >known user doesn't use it properly, leading to in-guest breakage. > + - The "dom0" option is now supported on Arm and "sve=" sub-option can be > used > + to enable dom0 guest to use SVE/SVE2 instructions. > > ### Added > - On x86, support for features new in Intel Sapphire Rapids CPUs: > @@ -20,6 +22,7 @@ The format is based on [Keep a > Changelog](https://keepachangelog.com/en/1.0.0/) >- Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system > wide impact of a guest misusing atomic instructions. > - xl/libxl can customize SMBIOS strings for HVM guests. > + - On Arm, Xen supports guests running SVE/SVE2 instructions. (Tech Preview) > > ## > [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) > - 2022-12-12 > > diff --git a/SUPPORT.md b/SUPPORT.md > index 6dbed9d5d029..e0fa2246807b 100644 > --- a/SUPPORT.md > +++ b/SUPPORT.md > @@ -99,6 +99,12 @@ Extension to the GICv3 interrupt controller to support MSI. > > Status: Experimental > > +### ARM Scalable Vector Extension (SVE/SVE2) > + > +AArch64 guest can use Scalable Vector Extension (SVE/SVE2). > + > +Status: Tech Preview > + > ## Guest Type > > ### x86/PV > -- > 2.34.1 >
[PATCH v7 12/12] xen/changelog: Add SVE and "dom0" options to the changelog for Arm
Arm now can use the "dom0=" Xen command line option and the support for guests running SVE instructions is added, put entries in the changelog. Mention the "Tech Preview" status and add an entry in SUPPORT.md Signed-off-by: Luca Fancellu Acked-by: Henry Wang # CHANGELOG --- Changes from v6: - Add Henry's A-by to CHANGELOG Changes from v5: - Add Tech Preview status and add entry in SUPPORT.md (Bertrand) Changes from v4: - No changes Change from v3: - new patch --- CHANGELOG.md | 3 +++ SUPPORT.md | 6 ++ 2 files changed, 9 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 5bfd3aa5c0d5..512b7bdc0fcb 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -11,6 +11,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) cap toolstack provided values. - Ignore VCPUOP_set_singleshot_timer's VCPU_SSHOTTMR_future flag. The only known user doesn't use it properly, leading to in-guest breakage. + - The "dom0" option is now supported on Arm and "sve=" sub-option can be used + to enable dom0 guest to use SVE/SVE2 instructions. ### Added - On x86, support for features new in Intel Sapphire Rapids CPUs: @@ -20,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) - Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system wide impact of a guest misusing atomic instructions. - xl/libxl can customize SMBIOS strings for HVM guests. + - On Arm, Xen supports guests running SVE/SVE2 instructions. (Tech Preview) ## [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) - 2022-12-12 diff --git a/SUPPORT.md b/SUPPORT.md index 6dbed9d5d029..e0fa2246807b 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -99,6 +99,12 @@ Extension to the GICv3 interrupt controller to support MSI. Status: Experimental +### ARM Scalable Vector Extension (SVE/SVE2) + +AArch64 guest can use Scalable Vector Extension (SVE/SVE2). + +Status: Tech Preview + ## Guest Type ### x86/PV -- 2.34.1
