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X-MS-Exchange-AntiSpam-MessageData: =?utf-8?B?dzh2MEN5S2lncDFVOXRBOFd1bzZzRG41eHJjS3FLdUgvbGFzZDZ1M2FJb3Fn?= =?utf-8?B?UzBoTFcvMUJXK3A3K1h2R0VQR1Y2N1A0MXA3bFArZVdHWVBNVVB3T2hNVEpP?= =?utf-8?B?eUEzYUVhUjJaYzIxQmU4NGFtL2hCNnM3RnRYY1lnWWw5MHZ6a1czUjVRN3VN?= =?utf-8?B?Qm9wU1JuR3JUM3FUZDdIU05LRStxZnZ4ci9zbmJncitxTm9lZW5iMG5waWtC?= =?utf-8?B?M2lRYi9tNzlOVlVhVjc3OEFrVmNYNUIzZFZuMytXc1FuTnF2dnpyTTdSKzZY?= =?utf-8?B?SHdUZEpZWlBRbkVlcXZ5OFF6dkZkaFMxanR6MEhBWG1jeHNmOHF4V2dlKzdT?= =?utf-8?B?WjNBNnBvaStYOHpoaTV4WUVPRExoTUtOWUVCNGJZeHhDaUhjYklPa1hLVlFm?= =?utf-8?B?aTVFK2U1OEY5eUx0emtxdnNlaGFFQXVEWDdYS2NmNFFjVlFXQmVRbjZHMjFv?= =?utf-8?B?TUZkVDJldU1BTVFabDJ2Wmx2M05wa2xPRUYzVGlmUHBURkovL0thWWZOSWx4?= =?utf-8?B?TEtlclFFU0Z1Y29LSGtCV1ZZd1I1NWF5THR5QmNEckhTVk9kY2NSUStvYlk3?= =?utf-8?B?dDB1dVZNeHdmTUFhbDhRVGFrcEF4OFIrWTlucG1RVitqMUl4MmFSbEE2aTlw?= =?utf-8?B?YVRTZDVOaTNmU1hlVDg1N3RpcUdWRXJWbHJyUjd5THdncEV5ZTVETGZuMjBs?= =?utf-8?B?d0NoTEhiZUYrVUVldmkxZkE5TGlBd0dsNCtxOUphOGJhcUxTRzdwTzFnUFdO?= =?utf-8?B?THlTdG1JU2d4ZkpEQmJCUUlqbE5hTkdOREZNR0FxeHZhbnd1UFV2TisxalRN?= =?utf-8?B?Z1hOazJDZ1BDYkVvZGZxOVhzc3NqNHNZMXFkMms4QU52dkRjeU1RTVIvWk9z?= =?utf-8?B?a1hBKzM4enk2SUlnbHFPU3dSSEFHVFZ3L3ZuWSthT0ZkNnJ1TE95MVRvNVBX?= =?utf-8?B?YjhDMGpFNEV1alc0VXlJdTJudDVITHJBbloreXRwQWpuTnF3YlNTOHU1Tm8r?= =?utf-8?B?UGdXSEM2NC90b0l3Wm5OWS9uV09vN3VxbFVmRjFwS3ErdGRzbjF6aWtObnlV?= =?utf-8?B?Zit2dFY5SWdveklPM1pYYWVSOHB5bE5DTkdJTlRIdTZwdHE2N1pJK25lTk1C?= =?utf-8?B?dnprMlIzdUV1emY3ZHBwN1U1M0UxZFRlTjVWUGMxTUw2YmFXNUhvN3pNWmJ3?= =?utf-8?B?MzhXODdXR0pnTmxxZGdCMmRib2s1V21Id0ExRmtSa1Iva0FNeGN1bHFyVDlM?= =?utf-8?B?WG5tQ09MVVVHRzFyV1I2SHN3NGYrak1RUUswUzBjTkUxeTh6blRGT3hvTHB5?= =?utf-8?B?c0FsUEgySW5EU3ZzeDZCZlhWTm9KRmZ0TlpkOTFDekVVaGdQbVhuWnBsK0p5?= =?utf-8?B?Yk5KNFBYcERXTUF4UkVTV2Q5SGNhWnVMY3dybG9kcXhZNkp6VlM5WExGem5v?= =?utf-8?B?a1pZSWx5YlJRay9uelFhRmtoR00zZC8wM1RUdUF3PT0=?= X-MS-Exchange-CrossTenant-Network-Message-Id: a19e268e-7f19-4a86-7e9b-08d8c4351741 X-MS-Exchange-CrossTenant-AuthSource: DS7PR03MB5608.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jan 2021 09:05:57.7674 (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: 5f2xcm7HGuYeNj4Qd4k2UvYwvAv5dBNkgNaX7Fa/R3d9afnkUuRc+Xl7o2I6YR7uPkGnLob92+X4oxNvtdYAdw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR03MB2842 X-OriginatorOrg: citrix.com X-ZohoMail-DKIM: pass (identity @citrix.com) Both the multiboot and the HVM start info structures allow passing a string together with a module. Implement the missing support in pvh_load_kernel so that module strings found in the multiboot structure are forwarded to dom0. Fixes: 62ba982424 ('x86: parse Dom0 kernel for PVHv2') Signed-off-by: Roger Pau Monn=C3=A9 Acked-by: Jan Beulich --- NB: str cannot be made const because __hvm_copy buf parameter (that maps to str in the added code) is bi-directional depending on the flags passed to the function. --- xen/arch/x86/hvm/dom0_build.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/hvm/dom0_build.c b/xen/arch/x86/hvm/dom0_build.c index 12a82c9d7c..5f9281ce30 100644 --- a/xen/arch/x86/hvm/dom0_build.c +++ b/xen/arch/x86/hvm/dom0_build.c @@ -617,7 +617,21 @@ static int __init pvh_load_kernel(struct domain *d, co= nst module_t *image, =20 mod.paddr =3D last_addr; mod.size =3D initrd->mod_end; - last_addr +=3D ROUNDUP(initrd->mod_end, PAGE_SIZE); + last_addr +=3D ROUNDUP(initrd->mod_end, elf_64bit(&elf) ? 8 : 4); + if ( initrd->string ) + { + char *str =3D __va(initrd->string); + + rc =3D hvm_copy_to_guest_phys(last_addr, str, strlen(str) + 1,= v); + if ( rc ) + { + printk("Unable to copy module command line\n"); + return rc; + } + mod.cmdline_paddr =3D last_addr; + last_addr +=3D strlen(str) + 1; + } + last_addr =3D ROUNDUP(last_addr, PAGE_SIZE); } =20 /* Free temporary buffers. */ --=20 2.29.2