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[2a00:1028:83a4:4bca:c0bb:96ff:feed:9d50]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-35dd064bb21sm6879280f8f.102.2024.06.02.13.04.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Jun 2024 13:04:33 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 5512c646-211b-11ef-90a1-e314d9c70b13 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1717358674; x=1717963474; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=7xYGePkFSrt21Sw0npf4IiaMWXG46KCQA4sFct5gdmA=; b=cHfv1yX176TANK09Pl0nQALKyyOnCEyYy+I/1KmDdXN1H4OYXNwzYGtUua+Vgw3PGB +IYUYwFZWGe/9GVAQzV+c0GjSAELW4Vn9KPSMQkujLpzI2CLsCKwiEji2BO8/iaj2Da+ m3jkn2EYsKI6orXBf/w3zXB1Tyf08WOmKnHnjXA0gI/q2Tj7U3tk5jN/sb1LS0ER8BYp 3IINisdKJpuaLBmn6diJVlOzdpCfbBaXmTntQjqQBWFtUEc4c89DvTrl837CsZUjsbMk Ifnj1dO+gHQy3/qnS2vxlzzaMLXUHimopU7WW7N4N9BztxRcCjLw5uRCFXJ80SuNN4/j 5FKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717358674; x=1717963474; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7xYGePkFSrt21Sw0npf4IiaMWXG46KCQA4sFct5gdmA=; b=hlKRtEUXswCeIJ0e52jVB2qB00MBUvHFTXpd84E5fLq72as3bLtTxTsUA1qnZs8nK6 I8ta9VvzBtw8uLpgE/oztxyZY6l5a2/vhwlP6alxfVPC52jLgDdqJR0R6XXHFy15jRI8 uFc82JOeted18EXfEOjtFBlHdMbjq31uN40m/DXEEy1LnUouYiPG/tafjUcLFzhMGdL+ sCf+ev20tjPtERkLwEMQbZ6EAJ9p9E9XdGzJsSack5UQZ7UFtUQzcwiiO2j4CVpS5vXO iMTvuWGtTdMTcsqOMZd6v6UWcvXcV1pOemMm3dyWgy5qOEs07s7tgGN7spi1W/FnzsIi 9k/w== X-Gm-Message-State: AOJu0YyontB4N9OlJJ7oF/zyUOCVizyNsWL0v3GgN4ysAq3edRjDW0Xl DlSPSASItOMdpLa6R6nEHhAik3Qp300UN7/bRr57sQ8xpdg3eL3Bm4zZow== X-Google-Smtp-Source: AGHT+IGWniMlwBg4nMNN0Azz1SJeWir1giD7TSupuiF6HMS5oCbnDlsk4XCmiaUxi/NyRQN540kPqA== X-Received: by 2002:a5d:4e03:0:b0:34d:b284:9c65 with SMTP id ffacd0b85a97d-35e0f30ed25mr4741631f8f.45.1717358673787; Sun, 02 Jun 2024 13:04:33 -0700 (PDT) From: "=?UTF-8?q?Petr=20Bene=C5=A1?=" X-Google-Original-From: =?UTF-8?q?Petr=20Bene=C5=A1?= To: xen-devel@lists.xenproject.org Cc: =?UTF-8?q?Petr=20Bene=C5=A1?= , George Dunlap , Nick Rosbrook , Anthony PERARD , Juergen Gross Subject: [PATCH for-4.19? v5 04/10] tools/xl: Add altp2m_count parameter Date: Sun, 2 Jun 2024 20:04:17 +0000 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1717358710474100007 From: Petr Bene=C5=A1 Introduce a new altp2m_count parameter to control the maximum number of alt= p2m views a domain can use. By default, if altp2m_count is unspecified and altp= 2m is enabled, the value is set to 10, reflecting the legacy behavior. This change is preparatory; it establishes the groundwork for the feature b= ut does not activate it. Signed-off-by: Petr Bene=C5=A1 --- tools/golang/xenlight/helpers.gen.go | 2 ++ tools/golang/xenlight/types.gen.go | 1 + tools/include/libxl.h | 8 ++++++++ tools/libs/light/libxl_create.c | 9 +++++++++ tools/libs/light/libxl_types.idl | 1 + tools/xl/xl_parse.c | 9 +++++++++ 6 files changed, 30 insertions(+) diff --git a/tools/golang/xenlight/helpers.gen.go b/tools/golang/xenlight/h= elpers.gen.go index fe5110474d..0449c55f31 100644 --- a/tools/golang/xenlight/helpers.gen.go +++ b/tools/golang/xenlight/helpers.gen.go @@ -1159,6 +1159,7 @@ if err :=3D x.ArchX86.MsrRelaxed.fromC(&xc.arch_x86.m= sr_relaxed);err !=3D nil { return fmt.Errorf("converting field ArchX86.MsrRelaxed: %v", err) } x.Altp2M =3D Altp2MMode(xc.altp2m) +x.Altp2MCount =3D uint32(xc.altp2m_count) x.VmtraceBufKb =3D int(xc.vmtrace_buf_kb) if err :=3D x.Vpmu.fromC(&xc.vpmu);err !=3D nil { return fmt.Errorf("converting field Vpmu: %v", err) @@ -1676,6 +1677,7 @@ if err :=3D x.ArchX86.MsrRelaxed.toC(&xc.arch_x86.msr= _relaxed); err !=3D nil { return fmt.Errorf("converting field ArchX86.MsrRelaxed: %v", err) } xc.altp2m =3D C.libxl_altp2m_mode(x.Altp2M) +xc.altp2m_count =3D C.uint32_t(x.Altp2MCount) xc.vmtrace_buf_kb =3D C.int(x.VmtraceBufKb) if err :=3D x.Vpmu.toC(&xc.vpmu); err !=3D nil { return fmt.Errorf("converting field Vpmu: %v", err) diff --git a/tools/golang/xenlight/types.gen.go b/tools/golang/xenlight/typ= es.gen.go index c9e45b306f..54607758d3 100644 --- a/tools/golang/xenlight/types.gen.go +++ b/tools/golang/xenlight/types.gen.go @@ -603,6 +603,7 @@ ArchX86 struct { MsrRelaxed Defbool } Altp2M Altp2MMode +Altp2MCount uint32 VmtraceBufKb int Vpmu Defbool } diff --git a/tools/include/libxl.h b/tools/include/libxl.h index f5c7167742..bfa06caad2 100644 --- a/tools/include/libxl.h +++ b/tools/include/libxl.h @@ -1250,6 +1250,14 @@ typedef struct libxl__ctx libxl_ctx; */ #define LIBXL_HAVE_ALTP2M 1 +/* + * LIBXL_HAVE_ALTP2M_COUNT + * If this is defined, then libxl supports setting the maximum number of + * alternate p2m tables. + */ +#define LIBXL_HAVE_ALTP2M_COUNT 1 +#define LIBXL_ALTP2M_COUNT_DEFAULT (~(uint32_t)0) + /* * LIBXL_HAVE_REMUS * If this is defined, then libxl supports remus. diff --git a/tools/libs/light/libxl_create.c b/tools/libs/light/libxl_creat= e.c index 569e3d21ed..11d2f282f5 100644 --- a/tools/libs/light/libxl_create.c +++ b/tools/libs/light/libxl_create.c @@ -482,6 +482,15 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc, return -ERROR_INVAL; } + if (b_info->altp2m_count =3D=3D LIBXL_ALTP2M_COUNT_DEFAULT) { + if ((libxl_defbool_val(b_info->u.hvm.altp2m) || + b_info->altp2m !=3D LIBXL_ALTP2M_MODE_DISABLED)) + /* Reflect the default legacy count */ + b_info->altp2m_count =3D 10; + else + b_info->altp2m_count =3D 0; + } + /* Assume that providing a bootloader user implies enabling restrict. = */ libxl_defbool_setdefault(&b_info->bootloader_restrict, !!b_info->bootloader_user); diff --git a/tools/libs/light/libxl_types.idl b/tools/libs/light/libxl_type= s.idl index 4e65e6fda5..2963c5e250 100644 --- a/tools/libs/light/libxl_types.idl +++ b/tools/libs/light/libxl_types.idl @@ -729,6 +729,7 @@ libxl_domain_build_info =3D Struct("domain_build_info",[ # Alternate p2m is not bound to any architecture or guest type, as it = is # supported by x86 HVM and ARM support is planned. ("altp2m", libxl_altp2m_mode), + ("altp2m_count", uint32, {'init_val': 'LIBXL_ALTP2M_COUNT_DEFAULT'}), # Size of preallocated vmtrace trace buffers (in KBYTES). # Use zero value to disable this feature. diff --git a/tools/xl/xl_parse.c b/tools/xl/xl_parse.c index e3a4800f6e..a82b8fe6e4 100644 --- a/tools/xl/xl_parse.c +++ b/tools/xl/xl_parse.c @@ -2063,6 +2063,15 @@ void parse_config_data(const char *config_source, } } + if (!xlu_cfg_get_long(config, "altp2m_count", &l, 1)) { + if (l !=3D (uint16_t)l) { + fprintf(stderr, "ERROR: invalid value %ld for \"altp2m_count\"= \n", l); + exit (1); + } + + b_info->altp2m_count =3D l; + } + if (!xlu_cfg_get_long(config, "vmtrace_buf_kb", &l, 1) && l) { b_info->vmtrace_buf_kb =3D l; } -- 2.34.1