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mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=x96POU3Rped/M3iZclAcVyiA8U+JKnNokSoJ4Bo8H4w=; b=Gjt71eSLm2Rh1h7PKyIkj3J3bWVSc+qJcvBFSa4wkS7cPVWzSkDjt5eWNAbV4ImxEsAwG7kFoOTFqCYBIf2B9qpSQBqgVmZiw4iimiYn6EWfv4Mqow9+gklK8U/jRNIcRhfT2WnGOPz+6gULCswHaGX1RSacjj+jN8oXMsg3ZZo= From: Roger Pau Monne To: CC: Andrew Cooper , Roger Pau Monne , Ian Jackson , Wei Liu Subject: [PATCH 06/21] libs/guest: introduce helper to serialize a cpu policy Date: Tue, 23 Mar 2021 10:58:34 +0100 Message-ID: <20210323095849.37858-7-roger.pau@citrix.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210323095849.37858-1-roger.pau@citrix.com> References: <20210323095849.37858-1-roger.pau@citrix.com> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData: =?utf-8?B?VmdKYTdhdWp0cU53Z0t4ejZvb21nTkNBWG5KUms3bkVXdEw1Z1dGNXRTemM3?= =?utf-8?B?ZDM3WUk3eVN4QjJ2bUJwM2xTZGZMZE5zMmlhVWRwYUgwT2FEcWNHYkJzdTZn?= =?utf-8?B?blozV20xRWV4eUVHcWx0UDB0UlQvZGQ3QWxLMDR1SEJMbXhLKzBKSWY3WElI?= =?utf-8?B?Qy91VGs5b3dtM1FTcWN5NUFQSm54Q0kzME53RG5sQ3FxUmFzSzhSbC8xeXNT?= =?utf-8?B?eVA1NVFDbzRwckN3N0NKeE9nTXdFSjdKY2dDNVpZUEt4QVg0UnQ5RVZ4WkZX?= =?utf-8?B?MXAzeEI0cHlpZWdkUEFxWG44NUcwQVhzZklrSFd2am00UXRRLzFaMERubS9r?= =?utf-8?B?eUh3akZXZU9LeXNaSTZLNjhCMFpBTWZBczJoVGNDNGI1YzJCVWNGakJyQkVi?= =?utf-8?B?Z25udGFLM21IS3ZmT2VXRjIxUU05dW5ZVjN3Um1XZmQrbDd4TGhwV05ON1lG?= =?utf-8?B?RE9DWnh3Q1BnMlFOS1g0RXg3T2pYdXVQTC9sanhDQ0pGRWQ3MkZuTGJQWGV0?= =?utf-8?B?NzZVb3YyaS9LdjRNbnJpdDgreHJxWStnQW9NU1ZtbFBXNGFDN21IRk5wMXhz?= =?utf-8?B?dk9rQ2xiZXNaU3lRWVl2QlQxeGp5cjVmdWt3UWlKd3hKRkRQdThiVU16TE5Z?= =?utf-8?B?OGFvb1Y0anZwQnh4anlSUkZGWjNYTmVJQVUvV2Q5c2dUMWpNSmxkWmwxeCta?= =?utf-8?B?SXN2RUJMV0wra0hjemNxNWt4KzJDa0hOTVkrbUlwTHBEL3V3UjBNZG1VcEZF?= =?utf-8?B?eE1qRkZhRjVJaDMzaW9JTEtvL1JYM2RYS2ppeXd1WlBRMmMxNEYray94QSs3?= =?utf-8?B?WWJCaDZtREQrS2dtVko5Mm9OcEJ2ZWNYZWFtL0t3RDB6YjIya3dZT0NteEFI?= =?utf-8?B?b2lMV3FDUE9MTXpUM3Z3czNBem1odGhzVWlBZWNRelFxZHNPYlBSdjJ3MWIx?= =?utf-8?B?SThBWThrSHg1aXpxS0Q5L2pRY0FyUU5qYkY1ZForS3hobjFmaXMvMkUrV0xy?= =?utf-8?B?Yi9GN1dVeTFOWDZtdWlHWXZ4VS9DNUVUamJpVTl3OUFmRSt5YWYyZFI5OVpN?= =?utf-8?B?WjlUWUdla1ZYamg3NXNNNzJHVjFaUXprRThIZUNMV2lwSkxVb21vL2p6bDBV?= =?utf-8?B?RFE5d3l6cWsxV3EzdmtwKytGZ3MrNW9aUFlJSkZUcmg0RXdBNGlyZ0NBV2ha?= =?utf-8?B?WlRrV3hFcEZOOGJWeGxoNXJhcjhnRjlYL04wSDNBaUIwcjVmc2FETTgxYnR5?= =?utf-8?B?aTJPY0NoNW5NWXR6TjFPNGRGaTQ3QzhEWFlROGI4UXR1ZzFkRm43Q0N5eXA3?= =?utf-8?B?WFZlaGVXYlc5VXhBOVFXbFI5RHNrOXlHQWJpNEd6VTJvUk4zNStOaXBMNVQv?= =?utf-8?B?Wmh2RjFLMnYwNWdNRDRRdEV5RDY3b3ZTd0dWMG83WWhYL1RYSmFGQzl5YXlZ?= =?utf-8?B?Ukc4Q0RDWUsxUFR6dFhEYU9ZNmc4dkRabUhpVWZ4V0N4WjJ2QllPdEhRMkli?= =?utf-8?B?ZGFLelE0QkJuQzZURDEwZTVzWTRBS3BibSt5UzRVSE5PcWxWYmpaYjNjT09y?= =?utf-8?B?UUVhRkJoWEtCQURsWGpJaHlTSGF2NDRUenN2VWN5OCt4Q3BWODlZTVVpV2dZ?= =?utf-8?B?UWxKYk5mSUZpQ2F4V21iNTRnWCtkT2hObWMzSERaRDQ0QWkrdjFjV3dobE5M?= =?utf-8?B?ZU1HRTVZNzVXNEEyN1pIamNPemxJUGlUUm56ZXBXR082SXNkdlNBWjVaSVE3?= =?utf-8?Q?FrdsEH8/npoNr7AEPK7blcZ36hPSI/btMhD/h6t?= X-MS-Exchange-CrossTenant-Network-Message-Id: 5d183e04-e412-4789-dd82-08d8ede26cd2 X-MS-Exchange-CrossTenant-AuthSource: DS7PR03MB5608.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Mar 2021 10:00:01.9076 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: lN9TRHtbaV08ZQ+u5C0zWpFawoQxB9E4CeaGr5Xfe66nK8L5KK7/2FySigun1/LIdJ8AU7aq/qvEhP2d87nL9Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR03MB2633 X-OriginatorOrg: citrix.com Such helper allow converting a cpu policy into an array of xen_cpuid_leaf_t and xen_msr_entry_t elements, which matches the current interface of the CPUID/MSR functions. This is required in order for the user to be able to parse the CPUID/MSR data. No user of the interface introduced in this patch. Signed-off-by: Roger Pau Monné --- tools/include/xenctrl.h | 5 +++++ tools/libs/guest/xg_cpuid_x86.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h index 8b8b30a2764..983bb027a04 100644 --- a/tools/include/xenctrl.h +++ b/tools/include/xenctrl.h @@ -2602,6 +2602,11 @@ int xc_cpu_policy_get_system(xc_interface *xch, unsigned int idx, int xc_cpu_policy_get_domain(xc_interface *xch, uint32_t domid, xc_cpu_policy_t policy); +/* Manipulate a policy via architectural representations. */ +int xc_cpu_policy_serialise(xc_interface *xch, const xc_cpu_policy_t policy, + xen_cpuid_leaf_t *leaves, uint32_t *nr_leaves, + xen_msr_entry_t *msrs, uint32_t *nr_msrs); + int xc_get_cpu_levelling_caps(xc_interface *xch, uint32_t *caps); int xc_get_cpu_featureset(xc_interface *xch, uint32_t index, uint32_t *nr_features, uint32_t *featureset); diff --git a/tools/libs/guest/xg_cpuid_x86.c b/tools/libs/guest/xg_cpuid_x86.c index 75ac70996ac..812ef14fbcd 100644 --- a/tools/libs/guest/xg_cpuid_x86.c +++ b/tools/libs/guest/xg_cpuid_x86.c @@ -811,3 +811,35 @@ int xc_cpu_policy_get_domain(xc_interface *xch, uint32_t domid, free(msrs); return rc; } + +int xc_cpu_policy_serialise(xc_interface *xch, const xc_cpu_policy_t p, + xen_cpuid_leaf_t *leaves, uint32_t *nr_leaves, + xen_msr_entry_t *msrs, uint32_t *nr_msrs) +{ + int rc; + + if ( leaves ) + { + rc = x86_cpuid_copy_to_buffer(p->cpuid, leaves, nr_leaves); + if ( rc ) + { + ERROR("Failed to serialize CPUID policy"); + errno = -rc; + return -1; + } + } + + if ( msrs ) + { + rc = x86_msr_copy_to_buffer(p->msr, msrs, nr_msrs); + if ( rc ) + { + ERROR("Failed to serialize MSR policy"); + errno = -rc; + return -1; + } + } + + errno = 0; + return 0; +} -- 2.30.1