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Fri, 05 Jun 2020 17:07:02 +0100 MIME-Version: 1.0 Date: Fri, 05 Jun 2020 17:07:02 +0100 From: Marc Zyngier To: Alexandru Elisei Subject: Re: [kvmtool][PATCH] arm64: Obtain text offset from kernel image In-Reply-To: References: <20200605104907.1307967-1-maz@kernel.org> User-Agent: Roundcube Webmail/1.4.4 Message-ID: <8eeb07b54718d83de6262434c08774fa@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: alexandru.elisei@arm.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, will@kernel.org, ardb@kernel.org, julien.thierry.kdev@gmail.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, Ard Biesheuvel X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; 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SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200605_090704_563166_E646D9A3 X-CRM114-Status: GOOD ( 19.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Julien Thierry , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, Ard Biesheuvel Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgQWxleCwKCk9uIDIwMjAtMDYtMDUgMTM6MTYsIEFsZXhhbmRydSBFbGlzZWkgd3JvdGU6Cj4g SGkgTWFyYywKPiAKPiBPbiA2LzUvMjAgMTE6NDkgQU0sIE1hcmMgWnluZ2llciB3cm90ZToKPj4g UmVjZW50IGNoYW5nZXMgbWFkZSB0byBMaW51eCA1LjggaGF2ZSBvdXRsaW5lZCB0aGF0IGt2bXRv b2wKPj4gaGFyZGNvZGVzIHRoZSB0ZXh0IG9mZnNldCBpbnN0ZWFkIG9mIHJlYWRpbmcgaXQgZnJv bSB0aGUgYXJtNjQKPj4gaW1hZ2UgaXRzZWxmLgo+PiAKPj4gVG8gYWRkcmVzcyB0aGlzLCBpbXBv cnQgdGhlIGltYWdlIGhlYWRlciBzdHJ1Y3R1cmUgaW50byBrdm10b29sCj4+IGFuZCBkbyB0aGUg cmlnaHQgdGhpbmcuIDMyYml0IGd1ZXN0cyBhcmUgc3RpbGwgbG9hZGVkIHRvIHRoZWlyCj4+IHVz dWFsIGxvY2F0aW9ucy4KPj4gCj4+IFJlcG9ydGVkLWJ5OiBBcmQgQmllc2hldXZlbCA8YXJkYkBr ZXJuZWwub3JnPgo+PiBTaWduZWQtb2ZmLWJ5OiBNYXJjIFp5bmdpZXIgPG1hekBrZXJuZWwub3Jn Pgo+PiAtLS0KPj4gIE1ha2VmaWxlICAgICAgICAgICAgICAgICAgICAgICAgICAgfCAgMSArCj4+ ICBhcm0vYWFyY2gzMi9pbmNsdWRlL2t2bS9rdm0tYXJjaC5oIHwgIDIgKy0KPj4gIGFybS9hYXJj aDY0L2luY2x1ZGUvYXNtL2ltYWdlLmggICAgfCA1OSAKPj4gKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrCj4+ICBhcm0vYWFyY2g2NC9pbmNsdWRlL2t2bS9rdm0tYXJjaC5oIHwgIDUgKy0t Cj4+ICBhcm0vYWFyY2g2NC9rdm0uYyAgICAgICAgICAgICAgICAgIHwgMzAgKysrKysrKysrKysr KysrCj4+ICBhcm0va3ZtLmMgICAgICAgICAgICAgICAgICAgICAgICAgIHwgIDIgKy0KPj4gIDYg ZmlsZXMgY2hhbmdlZCwgOTQgaW5zZXJ0aW9ucygrKSwgNSBkZWxldGlvbnMoLSkKPj4gIGNyZWF0 ZSBtb2RlIDEwMDY0NCBhcm0vYWFyY2g2NC9pbmNsdWRlL2FzbS9pbWFnZS5oCj4+ICBjcmVhdGUg bW9kZSAxMDA2NDQgYXJtL2FhcmNoNjQva3ZtLmMKPj4gCj4+IFsuLl0KPiAKPiBUaGlzIGlzIGEg Z3JlYXQgYWRkaXRpb24gdG8ga3ZtdG9vbCwgdGhhbmsgeW91ISBCZWZvcmUgSSBkbyBhIG1vcmUg Cj4gaW4tZGVwdGgKPiByZXZpZXcsIEkgaGF2ZSBzb21lIGdlbmVyYWwgcXVlc3Rpb25zLgo+IAo+ IFJlZ2FyZGluZyB0aGUgYWN0dWFsIHZhbHVlIG9mIHRleHRfb2Zmc2V0LCB0aGUgYm9vdGluZy5y c3QgZG9jdW1lbnQgCj4gc2F5czoKPiAKPiAiUHJpb3IgdG8gdjMuMTcsIHRoZSBlbmRpYW5uZXNz IG9mIHRleHRfb2Zmc2V0IHdhcyBub3Qgc3BlY2lmaWVkLsKgIEluCj4gdGhlc2UgY2FzZXMKPiBp bWFnZV9zaXplIGlzIHplcm8gYW5kIHRleHRfb2Zmc2V0IGlzIDB4ODAwMDAgaW4gdGhlIGVuZGlh bm5lc3Mgb2YgdGhlIAo+IGtlcm5lbC7CoAo+IFdoZXJlIGltYWdlX3NpemUgaXMgbm9uLXplcm8g aW1hZ2Vfc2l6ZSBpcyBsaXR0bGUtZW5kaWFuIGFuZCBtdXN0IGJlIAo+IHJlc3BlY3RlZC7CoAo+ IFdoZXJlIGltYWdlX3NpemUgaXMgemVybywgdGV4dF9vZmZzZXQgY2FuIGJlIGFzc3VtZWQgdG8g YmUgMHg4MDAwMCIuCj4gCj4gQWxsIGhlYWRlciBmaWVsZHMgYXJlIGRlY2xhcmVkIGxpdHRsZS1l bmRpYW4sIHdoaWNoIGxvb2tzIHRvIG1lIGxpa2UgaXQgCj4gd291bGQKPiBicmVhayBrZXJuZWxz IG9sZGVyIHRoYW4gMy4xNy4gSWYgdGhhdCB3YXMgaW50ZW50aW9uYWwsIEkgdGhpbmsgaXQncyAK PiB3b3J0aAo+IGRvY3VtZW50aW5nIHNvbWV3aGVyZSwgb3IgYXQgbGVhc3QgYSBjb21tZW50IGZv ciB0aGUgCj4ga3ZtX19hcmNoX2dldF9rZXJuX29mZnNldAo+IGZ1bmN0aW9uLgoKVEJILCBJIGRp ZG4ndCBnaXZlIHByZS0zLjE3ICpiaWctZW5kaWFuKiBtdWNoIHRob3VnaHQuIEhhcHB5IHRvIGRv Y3VtZW50Cml0IHRob3VnaC4KCj4gCj4gTm93IHRoYXQgd2UgYXJlIHBhcnNpbmcgdGhlIGtlcm5l bCBoZWFkZXIsIGhhdmUgeW91IGNvbnNpZGVyZWQKPiBjaGVja2luZyB0aGUgbWFnaWMKPiBudW1i ZXIgdG8gbWFrZSBzdXJlIHRoZSB1c2VyIHNwZWNpZmllZCBhIHZhbGlkIGtlcm5lbCBpbWFnZT8g SXQgbWlnaHQKPiBzYXZlIHNvbWVvbmUKPiBzb21lIHRpbWUgZGVidWdnaW5nIHdoeSB0aGUga2Vy bmVsIGlzbid0IGJvb3RpbmcsIGlmLCBmb3IgZXhhbXBsZSwgdGhleSAKPiBhcmUKPiBib290aW5n IGFuIGFybXY3IGtlcm5lbCwgYnV0IHRoZXkgZm9yZ290IHRvIHNwZWNpZnkgLS1hYXJjaDMyLgoK VGhhdCdkIGJlIGludGVyZXN0aW5nLiBJJ2QgYmUgcmVsdWN0YW50IHRvIHByZXZlbnQgaXQgZnJv bSBib290aW5nCmFsdG9nZXRoZXIsIGJ1dCBJIGNhbiBkZWZpbml0ZWx5IGRldGVjdCB0aGUgbGFj ayBvZiBzaWduYXR1cmUgYW5kCnByaW50IGEgd2FybmluZy4KClRoYW5rcywKCiAgICAgICAgIE0u Ci0tIApKYXp6IGlzIG5vdCBkZWFkLiBJdCBqdXN0IHNtZWxscyBmdW5ueS4uLgoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBt YWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9s aXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=