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Re: [PATCH v2 7/7] target/arm: Add el_is_in_host


From: Richard Henderson
Subject: Re: [PATCH v2 7/7] target/arm: Add el_is_in_host
Date: Thu, 19 May 2022 08:04:34 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0

On 5/19/22 04:39, Peter Maydell wrote:
+    mask = el ? HCR_E2H : HCR_E2H | HCR_TGE;
+    if ((env->cp15.hcr_el2 & mask) != mask) {
+        return false;
+    }
+
+    /* TGE and/or E2H set: double check those bits are currently legal. */
+    return arm_is_el2_enabled(env) && arm_el_is_aa64(env, 2);
+}

What about the HaveVirtHostExt() check ?

Handled by do_hcr_write, in not letting E2H be set.
Will add a comment.


r~



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